World Ionosphere/Thermosphere Study ; edited by C.H. Liu ; published for the ICSU Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) with financial assistance from Unesco subvention through a 1989 grant from ICSU
Gordon Lyon, editor ; contributors, Frances E. Holberton, Institute for Computer Sciences and Technology, National Bureau of Standards, J. Larmouth, University of Salford, M. D. McIlroy, Bell Telephone Laboratories, Incorporated