Agroforestry systems in the highlands of the Tehuacán Valley, Mexico: indigenous cultures and biodiversity conservation - Mariana Vallejo; Alejandro Casas; José Blancas; Ana I. Moreno-Calles; Leonor Solís; Selene Rangel-Landa; Patricia Dávila; Oswaldo Téllez (Agroforestry Systems, 2014)