APA (7th ed.) Citation

Mackenzie, J. P. S. (1997). Wading birds. Key Porter Books.

Chicago Style (17th ed.) Citation

Mackenzie, John P. S. Wading Birds. Toronto, Ont.: Key Porter Books, 1997.

MLA (9th ed.) Citation

Mackenzie, John P. S. Wading Birds. Key Porter Books, 1997.