lh & Giesecke. Technical drawing (9th ed.).
Chicago Style (17th ed.) Citationlh and Giesecke. Technical Drawing. 9th ed. New YorklbMacmillan Publishing Companylc1991.
MLA (9th ed.) Citationlh and Giesecke. Technical Drawing. 9th ed.
Warning: These citations may not always be 100% accurate.