APA (7th ed.) Citation

Freeman, R. B. (1996). Working for nothing: The supply of volunteer labor.

Chicago Style (17th ed.) Citation

Freeman, Richard B. Working for Nothing: The Supply of Volunteer Labor. Cambridge, Mass, 1996.

MLA (9th ed.) Citation

Freeman, Richard B. Working for Nothing: The Supply of Volunteer Labor. 1996.

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