APA (7th ed.) Citation

Helscher, F. (1941). Mumaw. [publisher not identified].

Chicago Style (17th ed.) Citation

Helscher, Fern. Mumaw. [New York, New York]: [publisher not identified], 1941.

MLA (9th ed.) Citation

Helscher, Fern. Mumaw. [publisher not identified], 1941.