Gupta, Jagannath. Nabayuger dhatu chatustoy / Jagannath Gupta. - Kolkata : Viswabharati Granthan Bibhag, 1362B.. - 55p PBK ISBN: Rs 0.50 Standard No.: 5609 [old SOUL v1.0 record id] Subjects--Topical Terms: MetallurgyDhatu Dewey Class. No.: 546.42 / J 181 n