Gaya APA
Holroyd, Joyce. (1971).
Measuring the effectiveness of area traffic control systems .
:
TRRL.
Gaya Chicago
Holroyd, Joyce.
Measuring the effectiveness of area traffic control systems.
:
TRRL,
1971.
Chart.
Gaya MLA
Holroyd, Joyce.
Measuring the effectiveness of area traffic control systems.
:
TRRL,
1971.
Chart.
Gaya Turabian
Holroyd, Joyce.
Measuring the effectiveness of area traffic control systems.
:
TRRL,
1971.
Chart.