共 6 条
[1]
BIALASZEWICZ, 1912, ARCH ENTWICKLUNGSMEC, V34, P489
[2]
GREENLEE, 1911, 83 USDA BUR CHEM
[3]
PENNINGTON, 1914, USDA B, V51
[4]
RICE, 1928, POULTRY SCI, V7, P116
[5]
SHARP, 1929, SCIENCE, V69, P278
[6]
WILLARD, 1909, KANSAS AGR EXPT STA, V153