University Press of America, 1978
Buku Teks
Halle, Louis
Harper & Brothers,, 1959
Buku Teks
John Wiley & Sons, 1965
Buku Teks
edited by Robert W. Tucker, Charles B. Keely, and Linda Wrigley
Westview Press, 1990
Buku Teks
The University of Michigan, 1976
Buku Teks