APA Edition Citation

Simpson, G. G. (1969). Principles of animal taxonomy.

Chicago Edition Citation

Simpson, George Gaylord. Principles of Animal Taxonomy. Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi, 1969.

MLA Edition Citation

Simpson, George Gaylord. Principles of Animal Taxonomy. 1969.

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