Technical drafting metric design and communication - Spence, William Perkins; Atkins, Michael B. (Manila National Book Store, 1980)
Reprint of the same ed. published by Chas A. Bennet, Peria, Ill.
Reprinted under authority of Presidential Decree No. 285, as amended by P.D. Nos. 400 and 1203.
Keywords: Mechanical drawing