Παραπομπή APA

Pushpa Dhyani. (2002). Classifying with dewey decimal classification (editions 19th and 20th). Ess Ess Publications.

Παραπομπή Chicago Style

Pushpa Dhyani. Classifying with Dewey Decimal Classification (editions 19th and 20th). New Delhi: Ess Ess Publications, 2002.

Παραπομπή MLA

Pushpa Dhyani. Classifying with Dewey Decimal Classification (editions 19th and 20th). Ess Ess Publications, 2002.