Crusius, Timothy W., author
McGraw-Hill, 2002
Buku Teks
edited by Murray Krieger
Stanford University Press, 1993
Buku Teks SO
Rottenberg, Annette T.
St. Martin, 1988
Buku Teks
Lanman, Charles Rockwell, 1850-1941, author
Harvard University Press, 1947
Buku Teks
Lanman, Charles Rockwell, 1850-1941, author
Harvard University Press, 1955
Buku Teks