Gaya APA
A.roberson, J. et al (^a1997).
Hydraulic Engineering/john A.roberson (^a2 ^bjilid 1).
New York:
Printed inth Unitedstates.
Gaya MLA
A.roberson, John. et al.
"Hydraulic Engineering/john A.roberson".
^a2 ^bjilid 1
New York:
Printed inth Unitedstates,
^a1997.
Text.