Gaya APA
Ward, W.H.. (1983).
Ground supports for tunnels in weak rocks .
:
The Institution of Civil Engineers.
Gaya Chicago
Ward, W.H..
Ground supports for tunnels in weak rocks.
:
The Institution of Civil Engineers,
1983.
Text.
Gaya MLA
Ward, W.H..
Ground supports for tunnels in weak rocks.
:
The Institution of Civil Engineers,
1983.
Text.
Gaya Turabian
Ward, W.H..
Ground supports for tunnels in weak rocks.
:
The Institution of Civil Engineers,
1983.
Print.