APA (7th ed.) Citation

Smith, R. L. (1923). Capturing crowds. The Abingdon press.

Chicago Style (17th ed.) Citation

Smith, Roy Lemon. Capturing Crowds. New York, Cincinnati: The Abingdon press, 1923.

MLA (9th ed.) Citation

Smith, Roy Lemon. Capturing Crowds. The Abingdon press, 1923.