Head, AGRIS/CARIS Coordinating Center, Library & Documentation Systems Division, Food and Agriculture Organization of the United Nations. Director, University Library, Ben-Gurion University, Israel, 1972-1979. Director, Central Library, Israel Institute of Technology, 1970-1972.
Deputy Director, United States National Agr Library, United States Department of Agr, 1968-1970. Deputy Atomic Energy Commission Librarian, Division of Tech Information, United States Atomic Energy Commission, 1963-1968. Rch Librarian, United States Library of Congress, Washington, District of Columbia, 1961-1963.
Librarian, Personnel Rch Unit, Bureau of Naval Personnel, United States Navy Department, 1959-1961.