APA (7th ed.) Citation

(2015). Visitor guide, Great Sand Dunes National Park and Preserve.

Chicago Style (17th ed.) Citation

Visitor Guide, Great Sand Dunes National Park and Preserve. [Washington, D.C.], 2015.

MLA (9th ed.) Citation

Visitor Guide, Great Sand Dunes National Park and Preserve. 2015.

Warning: These citations may not always be 100% accurate.