00630nam a2200241Ia 4500 49352 20240114003948.0 ta 090526s1922 g b000 u 465 u Cotton College,Assam 465 546.17 K 329 In Kempton, P. H. S. . Industrial Nitrogen / P. H. S. Kempton. Textual Documents 1st ed / London : Sir Isaac Pitman & Sons,Ltd , 1922. 105p ; 17 cm. Chemistry T/G-Chemistry ddc BK 0 0 0 0 Circulation (T/G) SKBL SKBL 2012-02-01 00000 0 546.17 K 329 In 749.6 2024-01-14 00:00:00 1 2012-02-01 BK 49317 49317