Gaya APA
Hight, D.W.. (1978).
Earthwork .
:
Applied Science Publishers.
Gaya Chicago
Hight, D.W..
Earthwork.
:
Applied Science Publishers,
1978.
Text.
Gaya MLA
Hight, D.W..
Earthwork.
:
Applied Science Publishers,
1978.
Text.
Gaya Turabian
Hight, D.W..
Earthwork.
:
Applied Science Publishers,
1978.
Print.