APA (7th ed.) Citation
Velásquez, E., Lavelle, P. M., Barrios, E., Joffre, R., & Reversat, F. (2005). Evaluating soil quality in tropical agroecosystems of Colombia using NIRS. Elsevier.
Chicago Style (17th ed.) Citation
Velásquez, E., Patrick M. Lavelle, E. Barrios, R. Joffre, and F. Reversat. Evaluating Soil Quality in Tropical Agroecosystems of Colombia Using NIRS. Elsevier, 2005.
MLA (9th ed.) Citation
Velásquez, E., et al. Evaluating Soil Quality in Tropical Agroecosystems of Colombia Using NIRS. Elsevier, 2005.
Warning: These citations may not always be 100% accurate.