Gaya APA
Jeffery, D.J.. (1981).
Ways and means for improving driver route guidance .
:
TRRL.
Gaya Chicago
Jeffery, D.J..
Ways and means for improving driver route guidance.
:
TRRL,
1981.
Chart.
Gaya MLA
Jeffery, D.J..
Ways and means for improving driver route guidance.
:
TRRL,
1981.
Chart.
Gaya Turabian
Jeffery, D.J..
Ways and means for improving driver route guidance.
:
TRRL,
1981.
Chart.