Sehgal R L
An introduction to Universal Decimal Classification/ by Sehgal R L - New Delhi: Ess Ess, 1994. - 266p.
R.L. Sehgal
9788170001669
Universal Decimal Classifaication
Library and Information Science
025.432 / SEH/I
An introduction to Universal Decimal Classification/ by Sehgal R L - New Delhi: Ess Ess, 1994. - 266p.
R.L. Sehgal
9788170001669
Universal Decimal Classifaication
Library and Information Science
025.432 / SEH/I