Gaya APA
Caplan, Ruth. (1972).
Traffic flows on M4 motorway, 1961-70 .
:
TRRL.
Gaya Chicago
Caplan, Ruth.
Traffic flows on M4 motorway, 1961-70.
:
TRRL,
1972.
Chart.
Gaya MLA
Caplan, Ruth.
Traffic flows on M4 motorway, 1961-70.
:
TRRL,
1972.
Chart.
Gaya Turabian
Caplan, Ruth.
Traffic flows on M4 motorway, 1961-70.
:
TRRL,
1972.
Chart.