共 25 条
[2]
ANKNEY CD, 1977, AUK, V94, P275
[3]
Bellrose F. C., 1976, DUCKS GEESE SWANS N
[4]
DIXON WJ, 1979, BIOMEDICAL COMPUTE P
[6]
Goodman D.C., 1962, FUNCTIONAL ANATOMY F
[7]
Helwig J.T., 1979, SAS USERS GUIDE
[8]
HOBAUGH WC, 1985, J WILDLIFE MANAGE, V49, P1037
[9]
VARIATION IN DIGESTIVE ORGAN SIZE AMONG 5 SPECIES OF DIVING DUCKS (AYTHYA SPP)
[J].
CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE,
1985, 63 (10)
:2339-2342