Prignitz, Helga (1992). El Taller de Gráfica Popular en México 1937–1977. Mexico: Instituto Nacional de Bellas Artes. ISBN9682933544. LCCN94139393.
web.archive.org
McCloskey, Kevin (April 2009). "TGP: A Mexico City Pilgrimage". CommonSense2: A Journal of Progressive Thought. Archived from the original on November 8, 2014. Retrieved 2009-11-29.{{cite web}}: CS1 maint: unfit URL (link)