00476nam a22001697a 4500 117684 117683 OSt 20260706113107.0 220629b ||||| |||| 00| 0 eng d 9780199492213 541.63 GUP Gupta,Subrata Sen 319 Basic stereochemistry of organic molecules by Subrata Sen Gupta India Oxford 2021 665 Dynamic stereochemistry Symmetry in molecules ddc BK