Campbell, A., & Metzner, C. A. (1950). Public use of the library and other sources of information. Ann Arbor, MI: University of Michigan. Institute for Social Research.
Παραπομπή Chicago StyleCampbell, Angus, and Charles A. Metzner. Public Use of the Library and Other Sources of Information. Ann Arbor, MI: University of Michigan. Institute for Social Research, 1950.
Παραπομπή MLACampbell, Angus, and Charles A. Metzner. Public Use of the Library and Other Sources of Information. Ann Arbor, MI: University of Michigan. Institute for Social Research, 1950.
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