000 00321nam a22001097a 4500
008 230809b |||||||| |||| 00| 0 eng d
022 _a0255-7193
040 _aNational Science Library
_cNational Science Library
245 _aClay research
260 _aNew Delhi:
_bThe Clay Minerals Society of India,
942 _cCR
_2udc
999 _c58358
_d58358