APA (7th ed.) Citation

Stretch, R. H. (1873). Illustrations of the Zygænidæ & Bombycidæ of North America. [publisher not identified].

Chicago Style (17th ed.) Citation

Stretch, Richard Harper. Illustrations of the Zygænidæ & Bombycidæ of North America. [San Francisco]: [publisher not identified], 1873.

MLA (9th ed.) Citation

Stretch, Richard Harper. Illustrations of the Zygænidæ & Bombycidæ of North America. [publisher not identified], 1873.