Palfremen, David, author
Pitman, 1988
Buku Teks
Hall, Ford P.
McGraw-Hill Book Company , 1949
Buku Teks
Hall, Ford P
McGraw-Hill, 1949.
Buku Teks
edited by R.B. Bucat
Australian Academy of Science, 1984
Buku Teks
Dickens, C. (Charles), 1812-1870, author
The Continental Book, 1947
Buku Teks