Gaya APA
Young, D., Timoshenko, S. (1955).
Vibration Problems In Engeneering (Ed.3).
New York:
D. Van Nostrand Company.
Gaya MLA
Young, D.H.., Timoshenko, S.P..
"Vibration Problems In Engeneering".
Ed.3
New York:
D. Van Nostrand Company,
1955.
Buku TM.