Citazione APA

Howard ,Daniel, De Boer ,Penelope, & Eddy Shaw ,Ellen. (2008). Encyclopedia of organic farming-vol.iii (3.). Dominant Publishers.

Stile di citazione Chicago

Howard ,Daniel, De Boer ,Penelope, e Eddy Shaw ,Ellen. Encyclopedia of Organic Farming-vol.iii. 3. New Delhi: Dominant Publishers, 2008.

Citazione MLA

Howard ,Daniel, et al. Encyclopedia of Organic Farming-vol.iii. 3. Dominant Publishers, 2008.