Pushpa , D. (2006). DDC classifying with dewey decimal classification editions 19th and 20th). Ess Ess.
Chicago-stil citatPushpa , Dhyani. DDC Classifying with Dewey Decimal Classification Editions 19th and 20th). New Delhi: Ess Ess, 2006.
MLA-referensPushpa , Dhyani. DDC Classifying with Dewey Decimal Classification Editions 19th and 20th). Ess Ess, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.