Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
revised and updated by Sandy Norman
Library Association Publishing, 1999
Buku Teks
Cornish, G. P., author
Cambridge University Press, 2015
eBooks
revised and update by Sandy Norman
Library Association Publishing, 1999
Buku Teks