Παραπομπή σε μορφή APA (7η εκδ.)

McRobie, G. (1990). Tools for organic farming: A manual of appropiate equipment and treatments. Intermediate Technology.

Παραπομπή σε μορφή Chicago (17η εκδ.)

McRobie, George. Tools for Organic Farming: A Manual of Appropiate Equipment and Treatments. Londres: Intermediate Technology, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

McRobie, George. Tools for Organic Farming: A Manual of Appropiate Equipment and Treatments. Intermediate Technology, 1990.