Gilpin, Noel. Gram atoms to equations / questions prepared by Derek Stebbens. - London : Heinemann, 1968. - Foreground chemistry ; 1 . ISBN: 5/- LCCN: 70441595 Subjects--Topical Terms: Atoms.Chemical equations. LC Class. No.: QD461 / .G55 1968 Dewey Class. No.: 541/.2