Cite
MLA (8th Edition)
Historic Trail Map of the Greeley 1⁰ x 2⁰ Quadrangle, Colorado and Wyoming. The Survey, For sale by Map Distribution, 1993.
APA (7th Edition)
Historic trail map of the Greeley 1⁰ x 2⁰ quadrangle, Colorado and Wyoming. (1993). The Survey, For sale by Map Distribution.
Chicago (17th Edition)
“Historic Trail Map of the Greeley 1⁰ x 2⁰ Quadrangle, Colorado and Wyoming.” Reston, VA: The Survey, For sale by Map Distribution, 1993.