Gaya APA
Paul, R., Grove, R. (2008).
Guide to Road Design Part 7: Geotechnical Investigation and Design (First Ed).
Sydney:
AUSTROADS.
Gaya MLA
Paul, Ross.., Grove, Rob..
"Guide to Road Design Part 7: Geotechnical Investigation and Design".
First Ed
Sydney:
AUSTROADS,
2008.
Text.