Gaya APA
Weigelt, Horst R.. (1977).
City traffic; a systems digest .
:
Van Nostrand Reinhold Company.
Gaya Chicago
Weigelt, Horst R..
City traffic; a systems digest.
:
Van Nostrand Reinhold Company,
1977.
Text.
Gaya MLA
Weigelt, Horst R..
City traffic; a systems digest.
:
Van Nostrand Reinhold Company,
1977.
Text.
Gaya Turabian
Weigelt, Horst R..
City traffic; a systems digest.
:
Van Nostrand Reinhold Company,
1977.
Print.