Smart, Huw
Blackstone's police Q and A : general police duties 2006
Oxford University Press, 2006
 Buku Referensi
Smart, Huw
Blackstone's police Q and A : road policing 2006
Oxford University Press, 2006
 Buku Referensi
Smart, Huw
Blackstone's police Q and A : evidence and procedure 2006
Oxford University Press, 2006
 Buku Referensi
Battus
Q
querido's uigeverij, 1990
 Buku Teks
Kidner, Richard
Blackstone`s Statues on Employment Law
Blackstone, 1998
 Buku Teks