APA-viite

Pushpa , D. (2006). DDC classifying with dewey decimal classification editions 19th and 20th). Ess Ess.

Chicago-tyylinen lähdeviittaus

Pushpa , Dhyani. DDC Classifying with Dewey Decimal Classification Editions 19th and 20th). New Delhi: Ess Ess, 2006.

MLA-viite

Pushpa , Dhyani. DDC Classifying with Dewey Decimal Classification Editions 19th and 20th). Ess Ess, 2006.

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