APA (7th ed.) Citation

Murray, J. (2003). A few short notes on tropical butterflies. Penguin Books.

Chicago Style (17th ed.) Citation

Murray, John. A Few Short Notes on Tropical Butterflies. London: Penguin Books, 2003.

MLA (8th ed.) Citation

Murray, John. A Few Short Notes on Tropical Butterflies. Penguin Books, 2003.