APA (7th ed.) Citation

Bowen, E. E., & Rusby, G. L. (1942). Economics simplified. Robert Schalkenbach foundation.

Chicago Style (17th ed.) Citation

Bowen, Elizabeth Ethel, and George Landon Rusby. Economics Simplified. New York: Robert Schalkenbach foundation, 1942.

MLA (9th ed.) Citation

Bowen, Elizabeth Ethel, and George Landon Rusby. Economics Simplified. Robert Schalkenbach foundation, 1942.