APA (7th ed.) Citation

Young, J. E., & Ayres, E. (1994). The next efficiency revolution: Creating a sustainable materials economy. Worldwatch Institute.

Chicago Style (17th ed.) Citation

Young, John E., and Ed Ayres. The Next Efficiency Revolution: Creating a Sustainable Materials Economy. Washington, DC: Worldwatch Institute, 1994.

MLA (9th ed.) Citation

Young, John E., and Ed Ayres. The Next Efficiency Revolution: Creating a Sustainable Materials Economy. Worldwatch Institute, 1994.