edited by George R. Creeger and Joseph W. Reed, Jr.
Holt, Rinehart and Winston, 1964
Buku Teks
Spacks, Patricia Meyer
Wiley-Blackwell, 2009
Buku Teks
Cheney, Patrick
Wiley, 2011
Buku Teks
Taylor, Andrew
University of Queensland Press, 1989
Buku Teks
Whitworth, Michael H.
Wiley-Blackwell, 2010
Buku Teks