TY - BOOK AU - Zelikoff, M. ED - Conference on Chemical Aeronomy TI - The threshold of space: the proceedings of the Conference on Chemical Aeronomy, Cambridge Mass., 25-28 June 1956 U1 - 551.514 23 PY - 1957/// CY - London PB - Published by the Symposium Division, Pergamon Press KW - Atmosphere, Upper KW - Congresses. KW - Atmosphere N1 - Sponsored by Geophysics Research Directorate of the Air Force Cambridge Research Centre, Air Research and Development Command coordinated by Wentworth Institute; Includes index ER -