R L Sehgal
Number building in Dewey Decimal Classification Universal Decimal Classification & Colon Classification/ by R L Sehgal - New Delhi: Ess Ess, 1993. - 624p.
9788170001539
Classification Library Science
Library and Information Science
025.43 / RLS/N
Number building in Dewey Decimal Classification Universal Decimal Classification & Colon Classification/ by R L Sehgal - New Delhi: Ess Ess, 1993. - 624p.
9788170001539
Classification Library Science
Library and Information Science
025.43 / RLS/N