Gaya APA
Walter, H.. (1975).
Low cost roads, lightly trafficked roads; Federal republic of Germany .
:
Piarc.
Gaya Chicago
Walter, H..
Low cost roads, lightly trafficked roads; Federal republic of Germany.
:
Piarc,
1975.
Computer Software.
Gaya MLA
Walter, H..
Low cost roads, lightly trafficked roads; Federal republic of Germany.
:
Piarc,
1975.
Computer Software.
Gaya Turabian
Walter, H..
Low cost roads, lightly trafficked roads; Federal republic of Germany.
:
Piarc,
1975.
Computer Software.