Penggayaan APA
D.Holtz, William D. Kovacs. (1981).
An Introduction to geotechnical engineering .
New Jersey:
Prentice Hall.
Chicago Style
D.Holtz, William D. Kovacs.
An Introduction to geotechnical engineering.
New Jersey:
Prentice Hall,
1981.
Text.
MLA Style
D.Holtz, William D. Kovacs.
An Introduction to geotechnical engineering.
New Jersey:
Prentice Hall,
1981.
Text.
Turabian Style
D.Holtz, William D. Kovacs.
An Introduction to geotechnical engineering.
New Jersey:
Prentice Hall,
1981.
Print.