by Odum W.E
Published in IUCN Publications New Series (IUCN). no. 42 (1976)

by McEachern J, Towle E.L
Published in IUCN Publications New Series (IUCN). no. 30 (1974)

Published in IUCN Publications New Series (IUCN). no. 29 (1974)

by Bacon, E.S, Burghardt, G.M. (Tennessee Univ., Knoxville (USA). Dept. of Psychology)
Published in IUCN Publications New Series (IUCN) (1976)

by Craighead, J.J, Sumner, J.S. (Montana Univ., Missoula (USA). Montana Cooperative Wildlife Research Unit), Varney, J.R. (Aeronautronic Ford Corp., Palo Alto, Calif. (USA)), Craighead, F.C. Jr. (Environmental Research Inst., Moose, Wyo. (USA))
Published in IUCN Publications New Series (IUCN) (1976)

by Wendelbo, P. (Arya-Mehr Botanical Garden, Teheran (Iran))
Published in IUCN Publications New Series (IUCN) (1976)

by Varney, J.R. (Aeronautronic Ford Corp., Palo Alto, Calif. (USA)), Craighead, J.J, Summer, J.S. (Montana Univ., Missoula (USA). Montana Cooperative Wildlife Research Unit)
Published in IUCN Publications New Series (IUCN) (1976)

by Miller, R.L, Will, G.B. (New York State Dept. of Environmental Conservation, Delmar (USA))
Published in IUCN Publications New Series (IUCN) (1976)

by Houerou, H.N. le (FAO, Rome (Italy))
Published in IUCN Publications New Series (IUCN) (1976)

by Vos, A. de (FAO, Rome (Italy))
Published in IUCN Publications New Series (IUCN) (1976)

by Vos, A. de
Published in IUCN Publications New Series (IUCN) (1976)

by Vos, A. de (FAO, Rome (Italy))
Published in IUCN Publications New Series (IUCN) (1976)

by Jonkel, C. (Montana Univ., Missoula (USA). School of Forestry), Stirling, I. (Canadian Wildlife Service, Edmonton), Robertson, R. (Manitoba Dept. of Mines, Resources and Environmental Management, The Pas (Canada))
Published in IUCN Publications New Series (IUCN) (1976)

by Poore, D. (International Union for Conservation of Nature and Natural Resources, Morges (Switzerland))
Published in IUCN Publications New Series (IUCN) (1976)

by Egbert, A.L, Stokes, A.W. (Utah State Univ., Logan (USA). Dept. of Wildlife Science)
Published in IUCN Publications New Series (IUCN) (1976)

by Rogers, L.L. (Minnesota Univ., Minneapolis (USA). Bell Museum of Natural History), Rogers, S.M. (Wildlife Research Inst., Minneapolis, Minn. (USA))
Published in IUCN Publications New Series (IUCN) (1976)

by Rogers, L.L, Harger, E.M, Verme, L.J, Ozoga, J.J. (Michigan Dept. of Natural Resources, Shingleton (USA)), Kuehn, D.W. (Wildlife Research Inst., Minneapolis, Minn. (USA)), Erickson, A.W. (Minnesota Univ., Minneapolis (USA). Dept. of Ecology and Behavioral Biology)
Published in IUCN Publications New Series (IUCN) (1976)

by Rogers, L.L, Erickson, A.W. (Minnesota Univ., Minneapolis (USA). Bell Museum of Natural History), Stowe, C.M. (Minnesota Univ., St. Paul (USA). Dept. of Veterinary Clinical Sciences)
Published in IUCN Publications New Series (IUCN) (1976)

by Bannikov, A.G, Rustanov, A.K
Published in IUCN Publications New Series (IUCN) (1976)

by McCaffrey, E.R, Will, G.B, Bergstrom, A.S. (New York State Dept. of Environmental Conservation, Delmar (USA))
Published in IUCN Publications New Series (IUCN) (1976)