APA (7th ed.) Citation

Firth, C. B., & Vander Willigen, A. W. (1970). Engineering drawing technology. McGraw-Hill.

Chicago Style (17th ed.) Citation

Firth, C. Barry, and A. W. Vander Willigen. Engineering Drawing Technology. London: McGraw-Hill, 1970.

MLA (9th ed.) Citation

Firth, C. Barry, and A. W. Vander Willigen. Engineering Drawing Technology. McGraw-Hill, 1970.