APA (7th ed.) Citation

Harwood, E. C. (1956). Useful economics. American Institute for Economic Research.

Chicago Style (17th ed.) Citation

Harwood, E. C. Useful Economics. Great Barrington, Mass.: American Institute for Economic Research, 1956.

MLA (9th ed.) Citation

Harwood, E. C. Useful Economics. American Institute for Economic Research, 1956.

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