TY - BOOK AU - Massey,Harrie Stewart Wilson AU - Boyd,R.L.F. TI - The upper atmosphere U1 - 551.5 PY - 1958///] CY - London PB - Hutchinson KW - Atmosphere, Upper KW - Ionosphere KW - Radio waves KW - Sound waves N1 - Includes index; Bibliography: p. 326 ER -