Gaya APA
Christady, H., Hardiyatmo, .
(2010).
Mekanika Tanah 1
(
6)
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Christady, Hary., Hardiyatmo, .
"Mekanika Tanah 1".
6
Yogyakarta:
Gadjah Mada University Press,
2010.
Text.