@book{becker:1964:efi,
    author = {Becker, Richard and Sauter, Fritz},
      year = {1964},
     title = {Electromagnetic Fields and Interactions},
    volume = {I},
 publisher = {Blaisdell},
   address = {New York},
      note = {Replaces Abraham \& Becker, Classical Theory of Electricity
              and Magnetism.}}