APA (7th ed.) Citation

Perrins, C. M. (1985). The Encyclopaedia of Birds. Equinox Ltd.

Chicago Style (17th ed.) Citation

Perrins, Christopher M. The Encyclopaedia of Birds. Equinox Ltd, 1985.

MLA (8th ed.) Citation

Perrins, Christopher M. The Encyclopaedia of Birds. Equinox Ltd, 1985.

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