APA (7th ed.) Citation

Cockerell, T. D. A. Hemiptera on Verbascum. Wiley.

Chicago Style (17th ed.) Citation

Cockerell, T. D. A. Hemiptera on Verbascum. Wiley.

MLA (9th ed.) Citation

Cockerell, T. D. A. Hemiptera on Verbascum. Wiley.

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