Abrahams, Roger D., Joseph C. Hickerson. "Cross-Fertilization Riddles." Western Folklore, 23:4 (1964): 253-258. [Inscribed by Hickerson.]

Abrahams, Roger D., Joseph C. Hickerson. "Cross-Fertilization Riddles." Western Folklore, 23:4 (1964): 253-258. [Inscribed by Hickerson.], Box: 82, Folder: 22. Américo Paredes Papers, 51244413. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/457732 Accessed September 26, 2026.