TY - BOOK AU - Huckel,Walter TI - Theoretical principles of organic chemistry U1 - 547.01 23 PY - 1955///-1958 CY - New York, London PB - Elsevier Pub. Co. KW - Chemistry, Organic KW - Theory N1 - Includes bibliographical references and index; Vol. 1-- V. 2-- ER -