APA (7th ed.) Citation

United States. Department of the Interior. (1931). Per capita costs in city schools, 1929-30. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Per Capita Costs in City Schools, 1929-30. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Department of the Interior. Per Capita Costs in City Schools, 1929-30. GPO, 1931.

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