MLA

of Manuscripts, Yale University. Department, and Archives. Book I Print 39: Felipe Guerra Matos Speaking with Two Guerrillas and Two Local Peasants. 1957. https://collections.library.yale.edu/catalog/10018042.

APA, 6th edition

of Manuscripts, Y. U. D., & A. (1957). Book I Print 39: Felipe Guerra Matos speaking with two guerrillas and two local peasants. https://collections.library.yale.edu/catalog/10018042.