APA (7th ed.) Citation

Hertzog, C. (1948). Some southwestern trails. [publisher not identified].

Chicago Style (17th ed.) Citation

Hertzog, Carl. Some Southwestern Trails. El Paso: [publisher not identified], 1948.

MLA (9th ed.) Citation

Hertzog, Carl. Some Southwestern Trails. [publisher not identified], 1948.

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