Magdoff, Harry
Modern Reader Paperbacks, 1969
Buku Teks
Buku Teks
edited by Robert W. Tucker, Charles B. Keely and Linda Wrigley
Westview Press, 1992
Buku Teks
edited by Barry M. Rubin and Elizabeth P. Spiro ; with a foreword by Muriel S. Humphrey
Westview Press, 1979
Buku Teks
Lippmann, Walter
Little, Brown, 1943.
Buku Teks