Methods of mathematical physies /
Courant, Richard.
Methods of mathematical physies / by Richard Courant and D. Hilbert. - 3ª reimp. - New York : John Wiley and Sons, [1966] - 2 v. : il. ; 24 cm.
Methods of mathematical physies / by Richard Courant and D. Hilbert. - 3ª reimp. - New York : John Wiley and Sons, [1966] - 2 v. : il. ; 24 cm.
