Gaya APA
Waidelich, Walter C.. (1990).
Earthwork construction .
:
TRB.
Gaya Chicago
Waidelich, Walter C..
Earthwork construction.
:
TRB,
1990.
Chart.
Gaya MLA
Waidelich, Walter C..
Earthwork construction.
:
TRB,
1990.
Chart.
Gaya Turabian
Waidelich, Walter C..
Earthwork construction.
:
TRB,
1990.
Chart.