SCHUMANN, C. H., JR.
Descriptive geometry problems, by C. H. Schumann. Jr., and Frank H. Lee.
SCHUMANN, C. H., JR. Descriptive geometry problems, by C. H. Schumann. Jr., and Frank H. Lee. © 31Aug27; A1004129. Charles H. Schumann, Jr., & Frank H. Lee (A); 7Jun55; R151165.
Charles H. Schumann, Jr., & Frank H. Lee|A