共 17 条
[1]
BRAGG DB, 1963, P ASSOC S AGR WORKER, V60, P312
[2]
Collier P., 1892, NEW YORK AGR EXP STA, V38, P1
[3]
Evans Robert John, 1944, POULTRY SCI, V23, P9, DOI 10.3382/ps.0230009
[4]
GUTOWSKA MARIE S., 1942, POULTRY SCI, V21, P321, DOI 10.3382/ps.0210321
[9]
NORRIS LC, 1934, POULTRY SCI, V13, P308
[10]
PETERSEN CF, 1960, 44 ID AGR EXP STA RE