Παραπομπή APA

Pushpa Dhyani. (2002). Classifying with Dewey Decimal Classification - Editions 19 and 20. Ess Ess Publications.

Παραπομπή Chicago Style

Pushpa Dhyani. Classifying with Dewey Decimal Classification - Editions 19 and 20. New Delhi: Ess Ess Publications, 2002.

Παραπομπή MLA

Pushpa Dhyani. Classifying with Dewey Decimal Classification - Editions 19 and 20. Ess Ess Publications, 2002.