Machine-shop mathematics /
by George Wentworth, David Eugene smith and Herbert Druery Harper.
APA Citation
Wentworth, G., Harper, H. Druery., Smith, D. Eugene., Harper, H. Druery., Smith, D. Eugene. (1922). Machine-shop mathematics. Boston: Ginn.
MLA Citation
Smith, D. Eugene, et al.. Machine-shop Mathematics. Boston: Ginn, 1922.
Warning: These citations may not always be complete (especially for serials).