TY - BOOK AU - Schofield, Kenneth, ED - Chemical Society, London TI - Recent work on naturally occuring nitrogen heterocyclic compounds: report of a symposium held at the University College of the South W est of England, Exeter, 13th - 15th July, 1955 U1 - 547 CHE PY - 1955/// CY - London PB - University College of the South West of England, Exeter KW - Nitrogen compounds KW - Heterocyclic compounds N1 - Includes bibliographical footnotes ER -