共 9 条
[2]
CLANDININ DR, 1970, P INT C SCI TECHNOLO, P267
[6]
SNEDECOR GW, 1956, STATISTICAL METHODS
[8]
VOGT H., 1969, Arch. Geflugelk., V33, P119
[9]
1974, 19TH AGR CAN CENTR P