APA (7th ed.) Citation

Gregg, J. (1966). Commerce of the prairies / by J. Gregg. University Microfilms.

Chicago Style (17th ed.) Citation

Gregg, J. Commerce of the Prairies / by J. Gregg. University Microfilms, 1966.

MLA (9th ed.) Citation

Gregg, J. Commerce of the Prairies / by J. Gregg. University Microfilms, 1966.

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