edited by Uwe Johannen, Jürgen Rudolph, and James Gomez
Select Books in association with Friedrich Naumann Foundation, 2000
Buku Teks
by Dwight Waldo ... [et.al.]
Duke University Press, 1970
Buku Teks
Gilbert, Neil, author
Allyn and Bacon, 1998
Buku Teks
Gilbert, Neil, author
Prentice-Hall, 1974
Buku Teks
[compiled by] Patrick E. Connor, with the collaboration of Theo Haimann, William G. Scott
Houghton-Mifflin, 1978
Buku Teks