00724nam a2200229 a 4500 00005995 110328s1991 nyua g 000 0 eng d 0070575401 : Tk.297.00 BD-DhIUB BD-DhIUB 515.35 19 Simmons, George F. Differential equations with applications and historical notes / George F. Simmons, John S. Robertson 2nd ed. New York : McGraw-Hill, Inc., 1991. xx, 629 p. : ill. ; 23 cm. Mathematics and Statistics 2000-04-23 Differential equations Spines Robertson, John S. 7809 7809 math