Eidt, D. The life histories, distribution, and immature forms of the north american sawflies of the genus Cephalcia (Hymenoptera : Pamphiliidae). Ottawa: 1969 56 p. : ill.
Eidt, D. The life histories, distribution, and immature forms of the north american sawflies of the genus Cephalcia (Hymenoptera : Pamphiliidae). Ottawa: 1969 56 p. : ill.
Eidt, D. (1969) The life histories, distribution, and immature forms of the north american sawflies of the genus Cephalcia (Hymenoptera : Pamphiliidae), Ottawa: 56 p. : ill.
Eidt, D. (1969). The life histories, distribution, and immature forms of the north american sawflies of the genus Cephalcia (Hymenoptera : Pamphiliidae). Ottawa: 56 p. : ill.
Eidt D. The life histories, distribution, and immature forms of the north american sawflies of the genus Cephalcia (Hymenoptera : Pamphiliidae). Ottawa: 1969. p. 56 p. : ill.