Cita APA (7a ed.)

Guerra, G. (1982). Farm management handbook (1st edition.). IICA.

Cita Chicago Style (17a ed.)

Guerra, Guillermo. Farm Management Handbook. 1st edition. Costa Rica: IICA, 1982.

Cita MLA (8a ed.)

Guerra, Guillermo. Farm Management Handbook. 1st edition. IICA, 1982.