APA (7th ed.) Citation

Knowlton, K. W., Beauchemin, R. A., & Quinn, P. J. (1977). Technical freehand drawing and sketching. Gregg Division, McGraw-Hill.

Chicago Style (17th ed.) Citation

Knowlton, Kenneth W., Robert A. Beauchemin, and Patrick J. Quinn. Technical Freehand Drawing and Sketching. New York: Gregg Division, McGraw-Hill, 1977.

MLA (9th ed.) Citation

Knowlton, Kenneth W., et al. Technical Freehand Drawing and Sketching. Gregg Division, McGraw-Hill, 1977.