APA Edition Citation

Engel, M. S., & Grimaldi, D. (2006). Evolution of the Insects.

Chicago Edition Citation

Engel, Michael S., and David Grimaldi. Evolution of the Insects. U K, Cambridge, 2006.

MLA Edition Citation

Engel, Michael S., and David Grimaldi. Evolution of the Insects. 2006.

Warning: These citations may not always be 100% accurate.