Two illustrations by Ernesto Thayaht. No source, 1931. [6875-1]
MLA
Two Illustrations by Ernesto Thayaht. No Source, 1931. [6875-1]. 1931. https://collections.library.yale.edu/catalog/10659547.
APA, 6th edition
Two illustrations by Ernesto Thayaht. No source, 1931. [6875-1]. (1931). [Scrapbooks]. https://collections.library.yale.edu/catalog/10659547.