Canciones de la Huelga: Agustin Lira, Luis Valdez, 'Huelga en General' Agustin Lira, 'El Esquirol' (Thunderbird Records 00002 [Delano, California]), undated

Canciones de la Huelga: Agustin Lira, Luis Valdez, 'Huelga en General' Agustin Lira, 'El Esquirol' (Thunderbird Records 00002 [Delano, California]), undated, Box: 133. Américo Paredes Papers, 51244413. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/458548 Accessed September 25, 2026.