APA (7th ed.) Citation

United States. Department of the Interior. (1928). Pamphlets on early childhood education. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Pamphlets on Early Childhood Education. [Washington]: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Department of the Interior. Pamphlets on Early Childhood Education. [publisher not identified], 1928.

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