The New Oxford encyclopedic dictionary; Volume 3
Oxford University Press, 1991
 Buku Referensi
The New Oxford encyclopedic dictionary; Volume 7
Oxford University Press, 1991
 Buku Referensi
The New Oxford encyclopedic dictionary; Volume 6
Oxford University Press, 1991
 Buku Referensi
The New Oxford encyclopedic dictionary; Volume 5
Oxford University Press, 1991
 Buku Referensi
The New Oxford encyclopedic dictionary; Volume 4
Oxford University Press, 1991
 Buku Referensi