共 8 条
[1]
ALBRIGHT W. P., 1933, POULTRY SCI, V12, P124, DOI 10.3382/ps.0120124
[3]
CARRICK CW, 1940, 53RD ANN REPT PURD U, P92
[4]
DAVIS GT, 1948, POULTRY SCI, V27, P658
[5]
FISHER RA, 1932, STATISTICAL METHODS
[6]
SCOTT H. M., 1937, POULTRY SCI, V16, P90, DOI 10.3382/ps.0160090
[7]
SCOTT HM, 1937, KANSAS B, V276, P21
[8]
WILCKE H. L., 1939, POULTRY SCI, V18, P236, DOI 10.3382/ps.0180236