Gaya APA
Whitman, T, W, L, , R, V. (1979).
Series In Soil Engineering : Soil Mechanics, SI Version (1).
New York:
John Wiley & Sons.
Gaya MLA
Whitman, T., William, Lambe, , Robert, V..
"Series In Soil Engineering : Soil Mechanics, SI Version".
1
New York:
John Wiley & Sons,
1979.
.