Jensen, C. H. (1968). Engineering drawing and design. McGraw-Hill Co. of Canada.
Cita Chicago (17th ed.)Jensen, Cecil Howard. Engineering Drawing and Design. New York: McGraw-Hill Co. of Canada, 1968.
Cita MLA (9th ed.)Jensen, Cecil Howard. Engineering Drawing and Design. McGraw-Hill Co. of Canada, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.