Heintze, I. (1963). The Organization of the small public library. Unesco.
Chicago-čujuhus (17. p.)Heintze, Ingeborg. The Organization of the Small Public Library. Paris: Unesco, 1963.
MLA-čujuhus (9. p.)Heintze, Ingeborg. The Organization of the Small Public Library. Unesco, 1963.
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