@article{63163, note = {"First edition."}, author = {Levens, A. S. and Eggers, Henry C. T.,}, url = {http://library.usi.edu/record/63163}, title = {Descriptive geometry,}, publisher = {Harper & Brothers}, recid = {63163}, pages = {viii p., 1 ., 240 p.}, address = {New York,}, year = {1941}, }