by Collins N.E, Walpole E.W
Published in Paper - American Society of Agricultural Engineers (USA). Microfiche collection. no. fiche 82-4552 (1982)

by Collins N.E, Walpole E.W
Published in Paper - American Society of Agricultural Engineers (USA). no. 80-5007 (1980)

by Collins N.E, Walpole E.W
Published in Proceedings Broiler Housing Seminar (1977)

by Collins N.E, Walpole E.W
Year of Publication 1977

by Collins, N.E, Walpole, E.W
Published in Paper - American Society of Agricultural Engineers (Microfiche collection) (USA) (1981)

by Ritter W.F, Walpole E.W, Eastburn R.P
Published in Agricultural Wastes (1984)

by Collins, N.E, Walpole, E.W, Carr, L.E
Published in Transactions of the ASAE (01.12.1979)

by Swain R.H, Jones E.R, Walpole E.W
Published in Agronomy Journal (1978)

by Ritter, W.F, Walpole, E.W, Eastburn, R.P
Year of Publication 1981

by MALONE, G.W., CHALOUPKA, G.W., WALPOLE, ERNST W., LITTLEFIELD, LLOYD H.
Published in Poultry science (01.01.1980)

by Ritter, W.F., Walpole, E.W., Eastburn, R.P.
Published in Agricultural wastes (1984)

by Collins, N.E, Walpole, E.W
Published in Transactions of the ASAE (01.01.1979)

by Collins N.E, Walpole E.W
Published in Transactions of the ASAE (1976)