共 6 条
[1]
BARTLETT JM, 1910, MAINE AGR EXP STA B, V184
[2]
FRAPS GS, 1928, TEXAS AGR EXP STA B, V372
[4]
KAUPP BF, 1923, N C AGR EXP STA TECH, V22
[6]
Roberts Roy E., 1943, POULTRY SCI, V22, P425, DOI 10.3382/ps.0220425