Duff, J. M., & Luzadder, W. J. (1994). Fundamentals of engineering drawing (Ed.11.).
Chicago Edition CitationDuff, Jon M., and Warren J. Luzadder. Fundamentals of Engineering Drawing. Ed.11. New Delhi, Prentice Hall of India, 1994.
MLA Edition CitationDuff, Jon M., and Warren J. Luzadder. Fundamentals of Engineering Drawing. Ed.11. 1994.
Warning: These citations may not always be 100% accurate.