Gaya APA
Departemen, U. (1975).
Concrete Manual A Water Recources Technical Publication (Ed. 8).
U.S.A:
Bureau of Reclamation.
Gaya MLA
Departemen, U.S.
"Concrete Manual A Water Recources Technical Publication".
Ed. 8
U.S.A:
Bureau of Reclamation,
1975.
Teknik Sipil.