Cita APA (7a ed.)

Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop evapotranspiration: Guidelines for computing crop water requirements. Food and Agriculture Organization of the United Nations-FAO.

Cita Chicago Style (17a ed.)

Allen, Richard G., Luis S. Pereira, Dirk Raes, y Martin Smith. Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements. Roma: Food and Agriculture Organization of the United Nations-FAO, 1998.

Cita MLA (8a ed.)

Allen, Richard G., et al. Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements. Food and Agriculture Organization of the United Nations-FAO, 1998.