Ranganathan, S. R. (1989). Philosophy of library classification. Sarada Ranganathan Endowment for Library Science.
Dyfyniad Arddull ChicagoRanganathan, S. R. Philosophy of Library Classification. Bangalore: Sarada Ranganathan Endowment for Library Science, 1989.
Dyfyniad MLARanganathan, S. R. Philosophy of Library Classification. Sarada Ranganathan Endowment for Library Science, 1989.
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