@book{marsden:1996:vc,
    author = {Marsden, J. E. and Tromba, A. J.},
   edition = {4th},
     title = {Vector Calculus},
 publisher = {W. H. Freeman \& Company},
   address = {New York},
      year = {1996},
      isbn = {0-7167-2445-6},
      note = {Fifth edition printed in 2003.},
     zblno = {0886.26003}}