Gaya APA
UK, Department of Transport. (1994).
Design manual for roads and bridges, volume 8 traffic signs and lighting .
:
HMSO.
Gaya Chicago
UK, Department of Transport.
Design manual for roads and bridges, volume 8 traffic signs and lighting.
:
HMSO,
1994.
Art Original.
Gaya MLA
UK, Department of Transport.
Design manual for roads and bridges, volume 8 traffic signs and lighting.
:
HMSO,
1994.
Art Original.
Gaya Turabian
UK, Department of Transport.
Design manual for roads and bridges, volume 8 traffic signs and lighting.
:
HMSO,
1994.
Art Original.