APA (7th ed.) Citation

Rand McNally and Company & Morgan, D. L. Pioneer atlas of the American West. [publisher not identified].

Chicago Style (17th ed.) Citation

Rand McNally and Company and Dale L. Morgan. Pioneer Atlas of the American West. Chicago [1956]: [publisher not identified].

MLA (9th ed.) Citation

Rand McNally and Company and Dale L. Morgan. Pioneer Atlas of the American West. [publisher not identified].