edited by Alan S. Downer
University of Chicago Press, 1965
Buku Teks
Hewes, Henry
Dell Publishing, 1975
Koleksi Publik
Quinn, Arthur Hobson, author
Irvington Publishers, 1943
Buku Teks
Krutch, Joseph Wood, author
George Braziller, 1957
Buku Teks
Gagey, Edmond M., author
Columbia University Press, 1948
Buku Teks