APA (7th ed.) Citation

Oxlade, C., lafford, S., & Tourret, S. (1989). Flowering plants. Franklin Watt.

Chicago Style (17th ed.) Citation

Oxlade, Chris, Stuart lafford, and Shirley Tourret. Flowering Plants. London: Franklin Watt, 1989.

MLA (9th ed.) Citation

Oxlade, Chris, et al. Flowering Plants. Franklin Watt, 1989.