Gaya APA
XIX World Road Congress; Report of the Proceedings of the Congress. (1991).
:
AIPCR.
Gaya Chicago
XIX World Road Congress; Report of the Proceedings of the Congress.
.
:
AIPCR,
1991.
Text.
Gaya MLA
XIX World Road Congress; Report of the Proceedings of the Congress.
.
:
AIPCR,
1991.
Text.
Gaya Turabian
XIX World Road Congress; Report of the Proceedings of the Congress.
:
AIPCR,
1991.
Print.