Gaya APA
FERTIS, D, G.
(1973).
Dynamics and Vibration of Structures
.
New York:
JOHN WILEY&SONS.
Gaya MLA
FERTIS, DEMETER, G..
"Dynamics and Vibration of Structures".
New York:
JOHN WILEY&SONS,
1973.
Text Book Sipil.