Gaya APA
Biggs, J, M. (1964).
Introduction to: Structural Dynamics (Ed. 1, Cet. 1).
United State of America:
McGraw-Hill.
Gaya MLA
Biggs, John, M..
"Introduction to: Structural Dynamics".
Ed. 1, Cet. 1
United State of America:
McGraw-Hill,
1964.
Text.