Taylor, Charles
House of Anansi, 1977
Buku Teks
Malin, James C.
The American Philosophical Society , 1942
Buku Teks
Ayer, A. J. (Alfred Jules), 1910-1989, author
Freeman, Coope, 1968
Buku Teks
Carr, Emily, author
Clarke Irwin, 1946
Buku Teks
White, James R. H.
McGraw-Hill, 1975
Buku Teks