APA引文

National Geographic Maps (Firm) issuing body. (2019). National Geographic road atlas: United States, Canada, Mexico (Adventure edition.). National Geographic Maps, in association with Globe Turner, LLC.

Chicago Style (17th ed.) Citation

National Geographic Maps (Firm) issuing body. National Geographic Road Atlas: United States, Canada, Mexico. Adventure edition. Evergreen, CO: National Geographic Maps, in association with Globe Turner, LLC, 2019.

MLA引文

National Geographic Maps (Firm) issuing body. National Geographic Road Atlas: United States, Canada, Mexico. Adventure edition. National Geographic Maps, in association with Globe Turner, LLC, 2019.