TY - BOOK AU - Murrell,J.N. AU - Kettle,S.F.A. AU - Tedder,John M. TI - Valence theory SN - 0471626880 U1 - 541.224 23 PY - 1970/// CY - London PB - John wiley & sons ltd. KW - Valence (Theoretical chemistry) N1 - Includes bibliographies and index ER -