Proceedings of the second lunar science conference Houston, Texas, January 11-14 1971 / edited by A. A. Levinson. - Cambridge, Mass. : MIT Press, 1971. - 3 v. : ill. ; 24 cm. includes bibliographical reference. ISBN: 0262120550 Subjects--Topical Terms: Lunar geology--Congresses. Subjects--Geographic Terms: Moon--Congresses.