APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1915). Guidebook of the western United States. Part A. The Northern Pacific route with a side trip to Yellowstone Park. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Guidebook of the Western United States. Part A. The Northern Pacific Route with a Side Trip to Yellowstone Park. Washington: [publisher not identified], 1915.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Guidebook of the Western United States. Part A. The Northern Pacific Route with a Side Trip to Yellowstone Park. [publisher not identified], 1915.

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