Paolo Emilio Amico Roxas. "El falso concepto del universo." Editorial Arpe, Rosario, 1936. [8394-2]
MLA
Paolo Emilio Amico Roxas. "El Falso Concepto Del Universo." Editorial Arpe, Rosario, 1936. [8394-2]. 1936. https://collections.library.yale.edu/catalog/10662493.
APA, 6th edition
Paolo Emilio Amico Roxas. "El falso concepto del universo." Editorial Arpe, Rosario, 1936. [8394-2]. (1936). [Scrapbooks]. https://collections.library.yale.edu/catalog/10662493.