00585cam a22002050 4500 1920300 690101s1922 ||| fre x (Sirsi) ABK-0681 OTU ENG QA371 C37 QA 371 .C37 GERSTM 1 Cartan, Elie, 1869-1951. Leçons sur les invariants intégraux. Paris A. Hermann 1922 210p. 14 Celestial mechanics. Differential equations. 07/14/1992 08/02/2001 GERSTEIN CHECKEDOUT QA371 .C37 BOOK 8/3/2009 1