Gaya APA
Ortendahl, Per Anders. (1991).
Environmental impact assessment in road system planning and road design .
:
Piarc.
Gaya Chicago
Ortendahl, Per Anders.
Environmental impact assessment in road system planning and road design.
:
Piarc,
1991.
Computer Software.
Gaya MLA
Ortendahl, Per Anders.
Environmental impact assessment in road system planning and road design.
:
Piarc,
1991.
Computer Software.
Gaya Turabian
Ortendahl, Per Anders.
Environmental impact assessment in road system planning and road design.
:
Piarc,
1991.
Computer Software.