Universidad Pedagógica Nacional Unidad Ajusco Catálogo de la Biblioteca "Gregorio Torres Quintero"
by SECCO LARRAVIDE, Luis.
by SLIWA, Jan.
by MENCHACA MIER, Manuel.
by VARGAS MERA, Ramón.
by MUÑOZ MARINO, OSWALDO.
by RANKIN, John C.
by UNIVERSIDAD RAFAEL LANDIVAR (GUATEMALA).
by RUIZ MANZANO, Carlos.
by FLORES COSIO, Augusto.
by TERCERO BARRAGAN, Enrique.
by Instituto Politécnico Nacional (México).