National Autonomous University of Mexico several locations across Mexico (in Santiago de Querétaro, Morelia, Mérida, Sisal, Ensenada, Cuernavaca, Temixco and Leon), mainly aimed at research and graduate studies. Its Center of Teaching for Foreigners has a campus in Taxco, in the southern Mexican state of Guerrero, focusing in Spanish language and Mexican culture for foreigners, as well as locations in the upscale neighborhood of [Polanco] in central Mexico City. The University has extension schools in the United States, and Canada, focusing on the Spanish language, English language, Mexican culture, and, in the case of UNAM Canada, French language: UNAM San Antonio, Texas; UNAM Los Angeles,
Mario de la Cueva textbooks across Latin America. Infused with the spirit of the Mexican Revolution of 1910, they conceptualized Mexican labour law as having the protection of workers' rights as its chief purpose. De la Cueva was also a leading advisor in the 1970 revision of the Mexican Labour Code. Mario de la Cueva Mario de la Cueva y de la Rosa (1901-1981) was a Mexican jurist and rector of the Universidad Nacional Autónoma de México (UNAM) in 1940–1942. De la Cueva studied law at the Escuela Nacional de Jurisprudencia of the UNAM, as well as at the Humboldt-Universität in Berlin. From 1929