Keeler, Richard. Methods of Teaching English in Puerto Rico. From Revista de la Asociación de Maestros 2, no. 5: 122-130, 1943 August

Keeler, Richard. Methods of Teaching English in Puerto Rico. From Revista de la Asociación de Maestros 2, no. 5: 122-130, 1943 August, Box: 85. George I. Sánchez Papers, 23866736. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/541668 Accessed September 27, 2026.