Cita APA (7a ed.)

University of Chicago. Graduate Library School & Asheim, L. E. (1961). Persistent issues in American librarianship: Bernard R. Berelson ... [et al.]. University of Chicago.

Cita Chicago Style (17a ed.)

University of Chicago. Graduate Library School y Lester Eugene Asheim. Persistent Issues in American Librarianship: Bernard R. Berelson ... [et Al.]. [Chicago]: University of Chicago, 1961.

Cita MLA (9a ed.)

University of Chicago. Graduate Library School y Lester Eugene Asheim. Persistent Issues in American Librarianship: Bernard R. Berelson ... [et Al.]. University of Chicago, 1961.