by Conklin N.C, Spencer W.P
Published in Bulletin - Cooperative Extension Service (1984)

by Spencer W.P, Dalsted N.L
Published in General Series. Colorado State University (1979)

by Spencer W.P, Pfost D.L, Pedersen J.R
Published in Grain Storage (1977)

by Spencer, W.P. (Colorado State University.), McKean, J.R, Haslem, R
Published in Bulletin (Colorado State University. Cooperative Extension Service) (USA) (01.01.1994)

by Spencer W.P, Eckert J.B
Published in Revue Mondiale de Zootechnie (1988)

by Spencer W.P, Eckert J.B
Published in Revista Mundial de Zootecnia (1988)

by Spencer, W.P., Johnson, R.A., Vietti, M.A.
Published in Journal of aerosol science (01.11.1976)

by Spencer, W.P, Eckert, J.B. (Colorado State Univ., Fort Collins, CO (USA). Dept. of Agricultural and Natural Resource Economics)
Published in World Animal Review (FAO) (01.01.1988)

by Spencer, W.P, Eckert, J.B. (Colorado State Univ., Fort Collins, CO (USA). Dept. of Agricultural and Natural Resource Economics)
Published in Revista Mundial de Zootecnia (FAO) (01.01.1988)

by Spencer, W.P, Eckert, J.B. (Colorado State Univ., Fort Collins, CO (USA). Dept. of Agricultural and Natural Resource Economics)
Published in Revue Mondiale de Zootechnie (FAO) (01.01.1988)