APA (7th ed.) Citation

Jensen, C. H., & Helsel, J. D. (1979). Fundamentals of engineering drawing. Gregg Division, McGraw-Hill.

Chicago Style (17th ed.) Citation

Jensen, Cecil Howard, and Jay D. Helsel. Fundamentals of Engineering Drawing. New York: Gregg Division, McGraw-Hill, 1979.

MLA (8th ed.) Citation

Jensen, Cecil Howard, and Jay D. Helsel. Fundamentals of Engineering Drawing. Gregg Division, McGraw-Hill, 1979.