Dygdon, J. T. E. (1963). Basic problems in engineering drawing. 2v, eng.
Chicago Edition CitationDygdon, John T. Etc. Basic Problems in Engineering Drawing. 2v, Eng. 1963.
MLA Edition CitationDygdon, John T. Etc. Basic Problems in Engineering Drawing. 2v, Eng. 1963.
Warning: These citations may not always be 100% accurate.