Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.