APA (7th ed.) Citation

Preston-Mafham, K., & Preston-Mafham, R. (1990). Grasshoppers and mantids of the world. Facts on File.

Chicago Style (17th ed.) Citation

Preston-Mafham, Ken, and Rod Preston-Mafham. Grasshoppers and Mantids of the World. New York: Facts on File, 1990.

MLA (9th ed.) Citation

Preston-Mafham, Ken, and Rod Preston-Mafham. Grasshoppers and Mantids of the World. Facts on File, 1990.