The study of comets: Parts 1 and 2. Proceedings of a conference held at Goddard Space Flight Center,Greenbelt, Md., October 28–November 1, 1974. Edited by B. Donn,M. Mumma,W. Jackson,M. A'Hearn,and R. Harrington. NASA SP-393, U.S. Government Printing Office,Washington, D.C. 1083 pp. $11.25 期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The study of comets: Parts 1 and 2. Proceedings of a conference held at Goddard Space Flight Center,Greenbelt, Md., October 28–November 1, 1974. Edited by B. Donn,M. Mumma,W. Jackson,M. A'Hearn,and R. Harrington. NASA SP-393, U.S. Government Printing Office,Washington, D.C. 1083 pp. $11.25

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