APA (7th ed.) Citation

Giesecke, F. E., Mitchell, A., & Spencer, H. C. (1947). Technical drawing problems (2d ed.). Macmillan Co..

Chicago Style (17th ed.) Citation

Giesecke, Frederick E., Alva Mitchell, and Henry Cecil Spencer. Technical Drawing Problems. 2d ed. New York: Macmillan Co., 1947.

MLA (9th ed.) Citation

Giesecke, Frederick E., et al. Technical Drawing Problems. 2d ed. Macmillan Co., 1947.