Hirsch, R. (1951). Changing Patterns of Scholarship and the Future of Research Libraries: A Symposium in Celebration of the 200th Anniversary of the Establishment of the University of Pennsylvania Library. University of Pennsylvania Press.
Cita Chicago Style (17a ed.)Hirsch, Rudolf. Changing Patterns of Scholarship and the Future of Research Libraries: A Symposium in Celebration of the 200th Anniversary of the Establishment of the University of Pennsylvania Library. Philadelphia: University of Pennsylvania Press, 1951.
Cita MLA (8a ed.)Hirsch, Rudolf. Changing Patterns of Scholarship and the Future of Research Libraries: A Symposium in Celebration of the 200th Anniversary of the Establishment of the University of Pennsylvania Library. University of Pennsylvania Press, 1951.