APA استشهاد

Ferry, N., & Gatehouse, A. M. R. (2009). Environmental impact of genetically modified crops. CABI.

استشهاد بنمط شيكاغو

Ferry, Natalie, و A. M. R. Gatehouse. Environmental Impact of Genetically Modified Crops. Wallingford, UK ; Cambridge, MA: CABI, 2009.

MLA استشهاد

Ferry, Natalie, و A. M. R. Gatehouse. Environmental Impact of Genetically Modified Crops. CABI, 2009.