Gaya APA
Hughes, H.. (1974).
Emerging state departments of transportation .
:
TRB.
Gaya Chicago
Hughes, H..
Emerging state departments of transportation.
:
TRB,
1974.
Chart.
Gaya MLA
Hughes, H..
Emerging state departments of transportation.
:
TRB,
1974.
Chart.
Gaya Turabian
Hughes, H..
Emerging state departments of transportation.
:
TRB,
1974.
Chart.