Jensen & Helsel. (1990). Engineering drawing and design (4th ed.). Glencoe.
Chicago Style (17th ed.) CitationJensen and Helsel. Engineering Drawing and Design. 4th ed. New York: Glencoe, 1990.
MLA (8th ed.) CitationJensen and Helsel. Engineering Drawing and Design. 4th ed. Glencoe, 1990.
Warning: These citations may not always be 100% accurate.