Cita APA (7a ed.)
Hahlbrock, K., Skogley, D., & Wiegandt, K. (2009). Feeding the planet: Environmental protection through sustainable agriculture. Haus Publishing.
Cita Chicago Style (17a ed.)
Hahlbrock, Klaus, David Skogley, y Klaus Wiegandt. Feeding the Planet: Environmental Protection Through Sustainable Agriculture. London, [England]: Haus Publishing, 2009.
Cita MLA (9a ed.)
Hahlbrock, Klaus, et al. Feeding the Planet: Environmental Protection Through Sustainable Agriculture. Haus Publishing, 2009.
Precaución: Estas citas no son 100% exactas.