Cite

Northern Plains / produced by the Cartographic Division, National Geographic Society ... ; John B. Garver, Jr., chief cartographer ; John F. Shupe, associate chief.

MLA

National Geographic Society (U.S.). Cartographic Division. Northern Plains / produced by the Cartographic Division, National Geographic Society ... ; John B. Garver, Jr., chief cartographer ; John F. Shupe, associate chief.. BRBL_00552. 1986. https://collections.library.yale.edu/catalog/15814477.

APA, 6th edition

National Geographic Society (U.S.). Cartographic Division. (["BRBL_00552"])(1986)[Northern Plains / produced by the Cartographic Division, National Geographic Society ... ; John B. Garver, Jr., chief cartographer ; John F. Shupe, associate chief.]. https://collections.library.yale.edu/catalog/15814477.