a text to assist workers in metal trades to understand blueprints and increase their trade knowledge Rogers, William W. creator Welton, Paul L., [from old catalog] text New York Chicago [etc.] Silver Burdett company [1942] monographic viii, 136 p. illus., diagrs. 28 x 22 cm. by William W. Rogers and Paul L. Welton. Supplemented by: "Answer book" (cover-title, 29 p. ; 23 cm.) published: [New York, Chicago, etc.] : Silver Burdett company, [1943] Call number: T379.R6 Answers 0 0 0 604_200000000000000_ROG Blueprints MCE 604.2 ROG