共 8 条
[1]
BRUCKNER HJ, 1936, POULTRY SCI, V15, P417
[2]
GEISE H, 1933, AGRIC ENGR J, V14, P67
[3]
GRUB W, 1962, 143 AUB U AGR EXPT S
[6]
ROMIJN C, 1966, PHYSIOLOGY DOMESTIC, pCH24
[7]
THOM EC, 1958, COOLING DEGREE DAYS, P65
[8]
WARREN DC, 1950, 68 KANS AGR EXPT STA