Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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