Gaya APA
Yerrell, J.S.. (1989).
Road safety in Africa - background and overview .
:
TRRL.
Gaya Chicago
Yerrell, J.S..
Road safety in Africa - background and overview.
:
TRRL,
1989.
Computer Software.
Gaya MLA
Yerrell, J.S..
Road safety in Africa - background and overview.
:
TRRL,
1989.
Computer Software.
Gaya Turabian
Yerrell, J.S..
Road safety in Africa - background and overview.
:
TRRL,
1989.
Computer Software.