The making of Canada. Yukon and Northwest Territories / produced by National Geographic Maps for National Geographic magazine ; Allen Carroll, director of cartography ; John F. Shupe, chief cartographer.
MLA
National Geographic Maps (Firm). The making of Canada. Yukon and Northwest Territories / produced by National Geographic Maps for National Geographic magazine ; Allen Carroll, director of cartography ; John F. Shupe, chief cartographer.. BRBL_00395. c1997.. https://collections.library.yale.edu/catalog/15536386.
APA, 6th edition
National Geographic Maps (Firm). (["BRBL_00395"])(c1997.)[The making of Canada. Yukon and Northwest Territories / produced by National Geographic Maps for National Geographic magazine ; Allen Carroll, director of cartography ; John F. Shupe, chief cartographer.]. https://collections.library.yale.edu/catalog/15536386.
