MLA

Charter, Martin, and Ursula Tischner. Sustainable Solutions : Developing Products and Services for the Future. Sheffield: Greenleaf Publishing, 2001.

APA

Charter, M., & Tischner, U. (2001). Sustainable solutions : developing products and services for the future. Sheffield: Greenleaf Publishing.

Chicago

Charter, Martin, and Ursula Tischner. Sustainable Solutions: Developing Products and Services for the Future. Sheffield: Greenleaf Publishing, 2001.