"A sea voyage to the bottom of South America," "Proposed catalogue introduction," typescript by Richard Baker Brown.
MLA
Baker, Richard Brown. "A Sea Voyage to the Bottom of South America," "Proposed Catalogue Introduction," Typescript by Richard Baker Brown. 1964. https://collections.library.yale.edu/catalog/2066905.
APA, 6th edition
Baker, R. B. (1964). "A sea voyage to the bottom of South America," "Proposed catalogue introduction," typescript by Richard Baker Brown. https://collections.library.yale.edu/catalog/2066905.