University of Chicago. Graduate Library School & Asheim, L. (1957). New directions in public library development: Papers presented before the twenty-second annual conference of the Graduate Library School of the University of Chicago, June 19-21, 1957.
Citace podle Chicago (17th ed.)University of Chicago. Graduate Library School a Lester Asheim. New Directions in Public Library Development: Papers Presented Before the Twenty-second Annual Conference of the Graduate Library School of the University of Chicago, June 19-21, 1957. Chicago, 1957.
Citace podle MLA (8th ed.)University of Chicago. Graduate Library School a Lester Asheim. New Directions in Public Library Development: Papers Presented Before the Twenty-second Annual Conference of the Graduate Library School of the University of Chicago, June 19-21, 1957. 1957.