Cita APA

Hurd, R. G., Biscoe, P., & Dennis, C. (1980). Opportunities for increasing crop yields. Boston: Association of Applied Biology.

Citación estilo Chicago

Hurd, R. G., P.V Biscoe, y C. Dennis. Opportunities for Increasing Crop Yields. Boston: Association of Applied Biology, 1980.

Cita MLA

Hurd, R. G., P.V Biscoe, y C. Dennis. Opportunities for Increasing Crop Yields. Boston: Association of Applied Biology, 1980.