Density of population (rural) / Geographic Div. - C.O.I.
MLA
of Coordinator of Information. Geographic Division, United States. Office. Density of Population (Rural) / Geographic Div. - C.O.I. C.O.I., 0AD. https://collections.library.yale.edu/catalog/15475658.
APA, 6th edition
of Coordinator of Information. Geographic Division, U. S. O. (0 C.E.). Density of population (rural) / Geographic Div. - C.O.I. [Maps]. C.O.I., https://collections.library.yale.edu/catalog/15475658.