TY - BOOK AU - Mantell, Murray I. AU - ED - ED - ED - ED - SN - 2 PY - 1964///46 CY - New York PB - Macmillan KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Vocational guidance KW - Engineering ethics.;Engineering N1 - Includes bibliographies; 5 ER -