APA (7th ed.) Citation

Ferguson, D. C. (1969). A revision of the moths of the subfamily Geometrinae of America north of Mexico <Insecta, Lepidoptera>.

Chicago Style (17th ed.) Citation

Ferguson, Douglas C. A Revision of the Moths of the Subfamily Geometrinae of America North of Mexico <Insecta, Lepidoptera>. 1969.

MLA (9th ed.) Citation

Ferguson, Douglas C. A Revision of the Moths of the Subfamily Geometrinae of America North of Mexico <Insecta, Lepidoptera>. 1969.

Warning: These citations may not always be 100% accurate.