APA (7th ed.) Citation

Hopkins, A. D. (1909). Contributions toward monograph of scolytid beetles: I. Genus Dendroctonus. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Hopkins, A. D. Contributions Toward Monograph of Scolytid Beetles: I. Genus Dendroctonus. [Washington, D.C.]: U.S. Government Printing Office, 1909.

MLA (9th ed.) Citation

Hopkins, A. D. Contributions Toward Monograph of Scolytid Beetles: I. Genus Dendroctonus. U.S. Government Printing Office, 1909.