The solar cycle : proceedings of the National Solar Observatory/Sacramento Peak 12th Summer Workshop and of the Fourth in series of Solar Cycle Workshops held at NSO/Sacramento Peak, 15-18 October 1991 - National Solar Observatory/Sacramento Peak. Summer Workshop 1991 : Sunspot, N.M.); Harvey, Karen L.; Solar Cycle Workshop 1991 : NSO/Sacramento Peak) (San Francisco : Astronomical Society of the Pacific, 1992)
Includes bibliographical references and index.
Keywords: Solar cycle -- Congresses