Berg, P., Zuckerman, S., & Magilavy, B. (1990). A green city program for the San Francisco Bay area and beyond. Planet Drum Foundation : Wingbow Press.
Cita Chicago Style (17a ed.)Berg, Peter, Seth Zuckerman, y Beryl Magilavy. A Green City Program for the San Francisco Bay Area and Beyond. San Francisco: Planet Drum Foundation : Wingbow Press, 1990.
Cita MLA (8a ed.)Berg, Peter, et al. A Green City Program for the San Francisco Bay Area and Beyond. Planet Drum Foundation : Wingbow Press, 1990.
Precaución: Estas citas no son 100% exactas.