Agarwala,U.C,Nigam,H.L and Agrawal,Sudha, Molecular Symmetry : By U.CAgarwala,H.L.Nigam and Sudha Agrawal . - New Delhi: Manakin Press., 2016 - viii;318p. ISBN: 978-93-84370-28-2 Dewey Class. No.: C9B1 / Q6