S.R. Ranganathan. Depth classification: Paper photocopy of annuals of library science vol:3 (1956) pages 33-72. Indian national scientific documentation centre.
Style de citation ChicagoS.R. Ranganathan. Depth Classification: Paper Photocopy of Annuals of Library Science Vol:3 (1956) Pages 33-72. New Delhi: Indian national scientific documentation centre.
Style de citation MLAS.R. Ranganathan. Depth Classification: Paper Photocopy of Annuals of Library Science Vol:3 (1956) Pages 33-72. Indian national scientific documentation centre.
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