University of Chicago. Graduate Library School & Asheim, L. E. (1961). Persistent issues in American librarianship: Bernard R. Berelson ... [et al.]. University of Chicago.
Citazione stile Chigago Style (17a edizione)University of Chicago. Graduate Library School e Lester Eugene Asheim. Persistent Issues in American Librarianship: Bernard R. Berelson ... [et Al.]. [Chicago]: University of Chicago, 1961.
Citatione MLA (9a ed.)University of Chicago. Graduate Library School e Lester Eugene Asheim. Persistent Issues in American Librarianship: Bernard R. Berelson ... [et Al.]. University of Chicago, 1961.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.