APA (7th ed.) Citation

United States. Office of Education. (1939). Good references on visual aids in education: Research studies. [s.n.].

Chicago Style (17th ed.) Citation

United States. Office of Education. Good References on Visual Aids in Education: Research Studies. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Office of Education. Good References on Visual Aids in Education: Research Studies. [s.n.], 1939.

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