edited by George Kunos
John Wiley & Sons, 1981
Buku Teks
Editor: A.J. Stockwell, R. Asthon
HMSO, 1995
Buku Teks
Huffman, Karen, author
John Wiley & Sons, 1994
Buku Teks
Huffman, Karen, author
John Wiley & Sons, 1997
Buku Teks
Learned, Edmund P. (Edmund Philip), 1900-1991, author
Harvard University Press, 1951
Buku Teks