Ogburn, William F., author
Houghton Mifflin, 1946
Buku Teks
McGraw-Hill , 1958
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House , [date of publication not identified]
Buku Teks
Bell, Earl H.
Harper & Row, 1965
Buku Teks
Wallace, Walter L.
Aldine publishing, 1970
Buku Teks