APA Edition Citation

Christopher M Perrins. (1985). The encyclopaedia of birds. George allen & Unwin.

Chicago Edition Citation

Christopher M Perrins. The Encyclopaedia of Birds. London: George allen & Unwin, 1985.

MLA Edition Citation

Christopher M Perrins. The Encyclopaedia of Birds. George allen & Unwin, 1985.

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