APA (7th ed.) Citation

Porter, J. (1997). The colour identification guide to caterpillars of the British Isles (Macrolepidoptera). Viking, published by the Penguin Group.

Chicago Style (17th ed.) Citation

Porter, Jim. The Colour Identification Guide to Caterpillars of the British Isles (Macrolepidoptera). London ; New York: Viking, published by the Penguin Group, 1997.

MLA (9th ed.) Citation

Porter, Jim. The Colour Identification Guide to Caterpillars of the British Isles (Macrolepidoptera). Viking, published by the Penguin Group, 1997.