Cita APA (7a ed.)
Velásquez, E., Lavelle, P. M., Barrios, E., Joffre, R., & Reversat, F. (2005). Evaluating soil quality in tropical agroecosystems of Colombia using NIRS. Elsevier.
Cita Chicago Style (17a ed.)
Velásquez, E., Patrick M. Lavelle, E. Barrios, R. Joffre, y F. Reversat. Evaluating Soil Quality in Tropical Agroecosystems of Colombia Using NIRS. Elsevier, 2005.
Cita MLA (9a ed.)
Velásquez, E., et al. Evaluating Soil Quality in Tropical Agroecosystems of Colombia Using NIRS. Elsevier, 2005.
Precaución: Estas citas no son 100% exactas.