00396nam a2200145 4500 9789392594823 025.432 DEE/PRA Deepmala Nigam Practical Universal Classification/ by Deepmala Nigam 3rd.(1961) New Delhi: Ess Ess Publications, 2024. 111p. Classification-UDC practical ddc BK 748434 748434 0 0 ddc 0 0 DLS DLS 2025-04-24 0 025.432 DEE/PRA DLS6007 2026-02-27 07:46:06 2025-04-24 BK