Bodsworth, C., author
The English Languange Book Society, 1963
Buku Teks
by Thomas R. Howell ... [and others]
Westview Press, 1988
Buku Teks
Bhat, B.A.
Edinburgh, Scottish Academic Press
Buku Teks
Best, Harry
Philosophical Library, 1951
Buku Teks
Shitikov, Alexei
Novosty Press Agency Publishing Hause , 1978
Buku Teks