Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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