MLA

Time Traveler Maps (Firm). The Colorado Plateau map & guide to public lands on the Colorado Plateau & its borderlands.. BRBL_00588. c1999.. https://collections.library.yale.edu/catalog/15818430.

APA, 6th edition

Time Traveler Maps (Firm). (["BRBL_00588"])(c1999.)[The Colorado Plateau map & guide to public lands on the Colorado Plateau & its borderlands.]. https://collections.library.yale.edu/catalog/15818430.