Mumford, Lewis, author
Brace Jovanovich, 1972
Buku Teks
Hartman, Geoffrey H.
Yale University Press , 1971
Buku Teks
Sherman, Stuart
Peter Smith, 1932
Buku Teks
Sherman, Stuart P., author
Charles Scribner's Sons, 1923
Buku Teks
Bourne, Randolph
Huetsch , 1920
Buku Teks