Villa-Vázquez, J.L. and Rodróguez-Contreras, A. 2011. Growing wild potatoes (Solanum cardiophyllum and S. ehrenbergii) in San Ignacio, municipality of Villa Hidalgo, Jalisco, Mexico. Revista de Geografía Agrícola. 46-47 (Dec. 2011), 19–28. DOI:https://doi.org/10.5154/r.rga.2011.46-47.02.