APA (7th ed.) Citation

Harder, L. D., & Barrett, S. C. H. (2006). Ecology and evolution of flowers.

Chicago Style (17th ed.) Citation

Harder, Lawrence D., and Spencer Charles Hilton Barrett. Ecology and Evolution of Flowers. 2006.

MLA (9th ed.) Citation

Harder, Lawrence D., and Spencer Charles Hilton Barrett. Ecology and Evolution of Flowers. 2006.

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