TY - BOOK AU - Cartmell E AU - Fowles G W A TI - Valency and molecular structure SN - 0408709227 (pbk) U1 - E:215, K1;L7;1 PY - 1977/// CY - London PB - Butterworths KW - Complex compounds KW - Energy levels KW - Energy units KW - Hydrogen atom N1 - ''Includes bibliographical references''.; ''Index 338-341p'' ER -