Meade, Teresa A., author
Wiley-Blackwell, 2010
Buku Teks
Rippy, J. Fred, author
University of Michigan Press, 1958
Buku Teks
Herring, Hubert, author
Alfred A. Knopf, 1968
Buku Teks
Herring, Hubert, author
Alfred A. Knopf, 1956
Buku Teks
Wasson, Ellis, author
Wiley-Blackwell, 2010
Buku Teks