Insect enemies of spruce in Northeast
Subtitle: popular account of results of special investigations, with recommendations for preventing losses.
Contributors: Hopkins, A. D.
Series: Entomology Bur. Bull. New Series No. 28
Publisher: U.S. G.P.O.
Published: 1901
Place of publication: [Washington, D.C.]
Format: Microform
Subjects: Insects.