Rossiter, Clinton, 1917-1970
Harcourt Brace, 1960
Buku Teks
Bailey, Stephen K.
Henry Holt, 1957
Buku Teks
Decker, Jefferson
Oxford University Press, 2016
eBooks
edited by Theodore L. Becker and Vernon G. Murray
Oxford University Press, 1971
Buku Teks
Meade, Teresa A.
Wiley-Blackwell, 2010
Buku Teks