APA (7th ed.) Citation

Erritzoe, J., & Erritzoe, H. B. (1993). The Birds of CITES and how to identify them. Lutterworth.

Chicago Style (17th ed.) Citation

Erritzoe, Johannes, and Helga Boullet Erritzoe. The Birds of CITES and How to Identify Them. Cambridge: Lutterworth, 1993.

MLA (9th ed.) Citation

Erritzoe, Johannes, and Helga Boullet Erritzoe. The Birds of CITES and How to Identify Them. Lutterworth, 1993.

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