APA (7th ed.) Citation

Spencer, H. C., & Dygdon, J. T. (1974). Basic technical drawing ([4th ed.].). Macmillan.

Chicago Style (17th ed.) Citation

Spencer, Henry Cecil, and John Thomas Dygdon. Basic Technical Drawing. [4th ed.]. New York: Macmillan, 1974.

MLA (9th ed.) Citation

Spencer, Henry Cecil, and John Thomas Dygdon. Basic Technical Drawing. [4th ed.]. Macmillan, 1974.