Link, Arthur S., author
Alfreda A. Knopf, 1955
Buku Teks
Link, Arthur S., author
Alfreda A. Knopf, 1963
Buku Teks
Link, Arthur S., author
Alfred A. Knopf, 1963
Buku Teks
Murdoch, James, author
Routledge , 1926
Buku Referensi
editor, Ainslie T. Embree
Charles Scribner's Sons, 1988
Buku Referensi