APA (7th ed.) Citation
Hahlbrock, K., Skogley, D., & Wiegandt, K. (2009). Feeding the planet: Environmental protection through sustainable agriculture. Haus Publishing.
Chicago Style (17th ed.) Citation
Hahlbrock, Klaus, David Skogley, and Klaus Wiegandt. Feeding the Planet: Environmental Protection Through Sustainable Agriculture. London, [England]: Haus Publishing, 2009.
MLA (9th ed.) Citation
Hahlbrock, Klaus, et al. Feeding the Planet: Environmental Protection Through Sustainable Agriculture. Haus Publishing, 2009.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.