Sánchez Cervantes, M., Cruz Castillo, J. G., & Inurreta Aguirre, H. D. (2013). Agronomy and environment of the Pear (Pyrus communis L.) in the central region of Veracruz. Revista De Geografía Agrícola, (50-51), 55–63. https://doi.org/10.5154/r.rga.2013.50-51.04