APA (7th ed.) Citation

Van der Ryn, S. (1999). The toilet papers: Recycling waste & conserving water. Chelsea Green Pub. Co..

Chicago Style (17th ed.) Citation

Van der Ryn, Sim. The Toilet Papers: Recycling Waste & Conserving Water. White River Junction, VT: Chelsea Green Pub. Co., 1999.

MLA (9th ed.) Citation

Van der Ryn, Sim. The Toilet Papers: Recycling Waste & Conserving Water. Chelsea Green Pub. Co., 1999.