selected and edited by Ermest B. Harper and Arthur Dunham
Association Press, 1966
Buku Teks
edited by Ernest B. Harper and Arthur Dunham
Associate Press, 1963
Buku Teks
Beneficial Management Institute, [Date of publication not identified]
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House, 1952
Buku Teks
Hall, Livingston, author
West Publishing, 1965
Buku Teks