Rodd's chemistry of carbon compounds. Supplement to the 2nd Edition. Supplement to IV A , Heterocyclic Compounds. Part A: Three‐, Four‐, and Five‐Membered Heterocyclic Compounds with a Single Hetero‐Atom in the Ring. Edited by M. F. Ansell. Elsevier, Amsterdam and New York, 1984. xvii + 540 pages. ISBN 0–444–42397–4. $146.25. This book is available from: Elsevier Science Publishers Co. Inc., P. O. Box 1663, Grand Central Station, New York, NY 10163