Solar and space physics:  space science in twenty-first century:  imperatives for the decades 1955 to 2015/ 
Task Group on Solar and Space Physics, National Research Council 
 - Washington, D. C.:  National Academy Press,  1988 
 - 139 p. ;   27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ionosphere<br/>Cosmic physics