Birkhoff, Garrett creator Rota, Gian-Carlo 1932-1999 New York Wiley c1989 4th ed. xi, 399 p. : ill. ; 24 cm. Garrett Birkhoff, Gian-Carlo Rota. Includes index. Differential equations 515.3/52 0471860034 http://www.loc.gov/catdir/description/wiley037/88014231.html http://www.loc.gov/catdir/toc/onix03/88014231.html http://www.loc.gov/catdir/description/wiley037/88014231.html http://www.loc.gov/catdir/toc/onix03/88014231.html DLC DLC