APA (7th ed.) Citation

Gee, D., & Porritt, J. (1990). Friends of the earth handbook. Orbit House.

Chicago Style (17th ed.) Citation

Gee, David, and Jonathon Porritt. Friends of the Earth Handbook. London: Orbit House, 1990.

MLA (9th ed.) Citation

Gee, David, and Jonathon Porritt. Friends of the Earth Handbook. Orbit House, 1990.

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