共 59 条
[1]
Ackerson CW, 1930, J AGRIC RES, V40, P0863
[2]
BLACKWOOD JH, 1933, HANNAH DAIRY RES I B, V5
[3]
BREIREM K., 1931, Tidsskrift for det Norske Landbruk, V38, P183
[4]
BROUWER E., 1931, Bitdermanns Zentralbl., B. Tierernahrung, V3, P311
[5]
CAMPBELL H., 1931, Journal of the American Dietetic Association, V7, P81
[6]
CARROLL WE, 1928, P AM SOC AN PROD JAN, P73
[7]
CARROLL WE, 1931, P AM SOC AN PROD JAN, P34
[8]
*COMM METH INV, 1933, P AM SOC AN PROD JAN, P380
[9]
CRAMPTON E. W., 1931, Scientific Agriculture, V11, P281
[10]
CRAMPTON E. W., 1932, SCI AGRICULTURE, V13, P16