Library of Technology 171 A SERIES OF TEXTBOOKS FOR PERSONS ENGAGED IN ENGINEER- OR FOR THOSE WHO DESIRE INFORMATION CONCERN- GEOMETRICAL DRAWING PRACTICAL PROJECTION SCRANTON INTERNATIONAL TEXTBOOK COMPANY |
Library of Technology 171 A SERIES OF TEXTBOOKS FOR PERSONS ENGAGED IN ENGINEER- OR FOR THOSE WHO DESIRE INFORMATION CONCERN- GEOMETRICAL DRAWING PRACTICAL PROJECTION SCRANTON INTERNATIONAL TEXTBOOK COMPANY |