APA način citiranja

Alfonso, C. A., Riverol, M., Porras, P., Cabrera, E., Somoza, V., & Otero, A. (2006). Effect of agronomic practices in soil properties in hillsides.

Čikaški stil citiranja

Alfonso, Carlos A., Mario Riverol, Pedro Porras, Eduardo Cabrera, Víctor Somoza, i Alberto Otero. Effect of Agronomic Practices in Soil Properties in Hillsides. 2006.

MLA način citiranja

Alfonso, Carlos A., et al. Effect of Agronomic Practices in Soil Properties in Hillsides. 2006.