Quiroga-Garza, Héctor Mario. “Manure and Fertilizer Effects on 15N-Nitrogen Recovery and Soil Electrical Conductivity”. REVISTA TERRA LATINOAMERICANA 29, no. 2 (June 1, 2011): 201–209. Accessed January 9, 2025. https://mail.terralatinoamericana.org.mx/index.php/terra/article/view/1194.