共 9 条
[1]
FRAPS GS, 1946, TEXAS AGR EXP STA B, V678
[3]
HARMS RH, 1955, UNPUB
[4]
JULL MA, 1923, SCI AGR, V3, P329
[5]
LEONG KC, 1955, POULTRY SCI, V34, P1206
[6]
LOWE B, 1927, POULTRY SCI, V6, P51
[8]
MITCHELL HH, 1926, U ILLINOIS AGR EXP S, V278
[9]
SNEDECOR GW, 1946, STATISTICAL METHODS