00524nam a22001817a 4500999001900000005001700019010001300036020002600049037002300075082000800098100002200106245007000128260003600198270004500234300002600279700001500305942002200320  c181669d18166920210930120458.0  aEN230921  a9789384761141c250.00  bLucent Publication  a000  aSunil Kumar Singh  aLucent's general science /cby Sunil Kumar Singh [and] R.P. Suman  aPatnabLucent Publicationc2021  aNew Bypass Road, AshochakbPatnae800030  avp.:bill.c27cm(pbk)  aR.P. Suman  2ddccENh000mLUC