London Chancellor Press 1999,
Buku Referensi
George Allen and Unwin, 1983
Buku Teks
Oxford University Press, 1981
Koleksi Publik
Clark, Manning, 1915-1991
Oxford University Press, 1957
Buku Teks
edited by Leonie Kramer
Oxford University Press, 1981
Buku Teks