Gaya APA
Watkins, L.H.. (1972).
Urban transport and environmental pollution .
:
TRRL.
Gaya Chicago
Watkins, L.H..
Urban transport and environmental pollution.
:
TRRL,
1972.
Chart.
Gaya MLA
Watkins, L.H..
Urban transport and environmental pollution.
:
TRRL,
1972.
Chart.
Gaya Turabian
Watkins, L.H..
Urban transport and environmental pollution.
:
TRRL,
1972.
Chart.