SMITH, ELLIOTT DUNLAP.
Technology and labor; a study of the human problems of labor saving. By Elliott Dunlap Smith & Richmond Carter Nyman.
SMITH, ELLIOTT DUNLAP. Technology and labor; a study of the human problems of labor saving. By Elliott Dunlap Smith & Richmond Carter Nyman. © 29Aug39; A132522. Elliott Dunlap Smith (A); 28Aug67; R416410.
Elliott Dunlap Smith|A