Gaya APA
Cox, John B.. (1989).
Road management systems for developing countries .
:
N.D. Lea International.
Gaya Chicago
Cox, John B..
Road management systems for developing countries.
:
N.D. Lea International,
1989.
Computer Software.
Gaya MLA
Cox, John B..
Road management systems for developing countries.
:
N.D. Lea International,
1989.
Computer Software.
Gaya Turabian
Cox, John B..
Road management systems for developing countries.
:
N.D. Lea International,
1989.
Computer Software.