by Meehan, W.R
Published in American Fisheries Society special publication (USA) (1991)

by Greening H, Doyon S
Published in Special publication (USA). no. SJ 90-SP9 (1990)

by Jacobs L.W
Published in SSSA special publication (USA). no. 23 (1989)

by McDonald M.B, Pardee W.D
Published in CSSA special publication (USA). no. 10 (1985)

by Barnett S
Published in NBS special publication (USA). no. 635 (1982)

by Tanner J.T, Pennington J.A.T
Published in NBS special publication (USA). no. 635 (1982)

by Uriano G.A
Published in NBS special publication (USA). no. 635 (1982)

by Margolis S.A
Published in NBS special publication (USA). no. 635 (1982)

by Elkins E.R
Published in NBS special publication (USA). no. 635 (1982)

by Berg John L, Graham Marc, Whitney Kevin
Published in NBS special publication (USA). no. 500-76 (1981)

by Magdoff, F, Tabatabai, M.A, Hanlon, E.A
Published in SSSA special publication (USA) (1996)

by Juo, A.S.R, Freed, R.D
Published in ASA special publication (USA) (1995)

by Shands, H.L, Wiesner, L.E
Published in CSSA special publication (USA) (1991)

by Sawhney, B.L, Brown, K.W
Published in SSSA special publication (USA) (1989)

by Taylor, H.M
Published in ASA special publication (USA) (1987)

by Usherwood, Noble R
Published in American Society of Agronomy. ASA special publication (USA) (1981)

Published in American Society of Agronomy. ASA special publication (USA). no. 40 (1981)

by Anon
Published in American Society of Agronomy. ASA special publication ; (USA) (1980)

by Aldrich Samuel R
Published in Illinois. University. College of Agriculture. Special publication (USA). no. 61 (1980)

by Sockut Gary H, Goldberg Robert P
Published in National Bureau of Standards special publication (USA). no. 500-47 (1979)