Gaya APA
Ferguson, P, H, J, C. (1973).
Reinforced Concrete Fundamentals .
United States of America:
John Wiley & Sons, Inc.
Gaya MLA
Ferguson, Phil.&, Henry, J., Cowan.
"Reinforced Concrete Fundamentals".
United States of America:
John Wiley & Sons, Inc,
1973.
Text.