00349nam a22001217a 4500020001800000082002000018100002400038245006700062250001200129260004600141300000900187650003100196  a9780199492213  a547.1223bGUP-B  a Gupta, Subrata Sen  aBasic stereochemistry of organic molecules / Subrata Sen Gupta  a2nd Ed.  aNew Delhi : Oxford University Press, 2018  a665p  aChemistryaSTEREOCHEMISTRY