APA (7th ed.) Citation

Goodden, R., & Goodden, R. (2016). Green guide to butterflies of Britain and Europe. Bloomsbury Publishing Plc.

Chicago Style (17th ed.) Citation

Goodden, Robert, and Rosemary Goodden. Green Guide to Butterflies of Britain and Europe. London: Bloomsbury Publishing Plc, 2016.

MLA (9th ed.) Citation

Goodden, Robert, and Rosemary Goodden. Green Guide to Butterflies of Britain and Europe. Bloomsbury Publishing Plc, 2016.