APA (7th ed.) Citation

Russell, T., & Cutler, C. (2012). The world encyclopedia of trees. Armadillo.

Chicago Style (17th ed.) Citation

Russell, Tony, and Catherine Cutler. The World Encyclopedia of Trees. Wigston, Leicestershire: Armadillo, 2012.

MLA (9th ed.) Citation

Russell, Tony, and Catherine Cutler. The World Encyclopedia of Trees. Armadillo, 2012.