APA (7th ed.) Citation

Weeks, A. G. Illustrations of diurnal Lepidoptera, with descriptions.

Chicago Style (17th ed.) Citation

Weeks, Andrew Gray. Illustrations of Diurnal Lepidoptera, with Descriptions.

MLA (9th ed.) Citation

Weeks, Andrew Gray. Illustrations of Diurnal Lepidoptera, with Descriptions.

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