United States. Department of the Interior. (1930). Motorist's guide: Crater Lake National Park, Oregon : what to see and do at crater lake. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of the Interior. Motorist's Guide: Crater Lake National Park, Oregon : What to See and Do at Crater Lake. [Oregon?]: [publisher not identified], 1930.
MLA (9th ed.) CitationUnited States. Department of the Interior. Motorist's Guide: Crater Lake National Park, Oregon : What to See and Do at Crater Lake. [publisher not identified], 1930.
Warning: These citations may not always be 100% accurate.