Cita APA (7a ed.)
Pinstrup-Andersen, P. (2001). Higher crop yields needed for a hungry world.
Cita Chicago Style (17a ed.)
Pinstrup-Andersen, Per. Higher Crop Yields Needed for a Hungry World. 2001.
Cita MLA (9a ed.)
Pinstrup-Andersen, Per. Higher Crop Yields Needed for a Hungry World. 2001.
Precaución: Estas citas no son 100% exactas.