A key to the principal orders and families of insects
By: by Z.P. Metcalf ... and C.L. Metcalf
Contributors: Metcalf, C. L. (Clell Lee), 1888-1948
Edition: Third edition, revised and illustrated.
Publisher: The authors
Published: 1928
Place of publication: Urbana? Ill.]
Language: eng
Number of pages: 23
Subjects: Insects; Classification
Notes: Bibliography: p. [3].