Henry Cecil Spencer & Hiram E. Grant.
The Blueprint language of the machine industries.
R582299. The Blueprint language of the machine industries. By Henry Cecil Spencer & Hiram E. Grant. © 13May47; A12778. Hiram E. Grant (A) & Juanita M. Spencer (W of Henry Cecil Spencer); 26Jul74; R582299.
Hiram E. Grant|A||Juanita M. Spencer|W of Henry Cecil Spencer