Lefschetz, S. (1977). Differential equations: Geometry theory (2nd. ed.). New York: Dover.
Chicago Style CitationLefschetz, Solomon. Differential Equations: Geometry Theory. 2nd. ed. New York: Dover, 1977.
MLA CitationLefschetz, Solomon. Differential Equations: Geometry Theory. 2nd. ed. New York: Dover, 1977.
Warning: These citations may not always be 100% accurate.