共 16 条
[2]
BOGGESS W. R., 1964, TRANS ILL STATE ACAD SCI, V57, P261
[3]
BROWN RFB, 1971, BIRD DAMAGE FRUIT NI, P20
[4]
CECH FC, 1976, P NE FOR TREE IMPROV, V23, P121
[5]
CORE EL, 1974, SHRUBS VINES NE WILD, P16
[6]
DEFLER SE, 1937, THESIS SYRACUSE U
[7]
Forbes D. C., 1972, Tree Planters' Notes, V23, P5
[8]
FOWELLS HA, 1965, USDA FOR SERV HAND, V271, P538
[10]
HUNTZINGER HJ, 1968, NE102 USDA FOR SERV