Centennial of Engineering, 1952, Inc, & Lohr, L. R. (1953). Centennial of engineering, 1852-1952: History and proceedings of symposia. [publisher not identified].
Chicago Style (17th ed.) CitationCentennial of Engineering, 1952, Inc, and Lenox R. Lohr. Centennial of Engineering, 1852-1952: History and Proceedings of Symposia. [Chicago]: [publisher not identified], 1953.
MLA (9th ed.) CitationCentennial of Engineering, 1952, Inc, and Lenox R. Lohr. Centennial of Engineering, 1852-1952: History and Proceedings of Symposia. [publisher not identified], 1953.
Warning: These citations may not always be 100% accurate.