TY  - BOOK
AU  - Den Hartog, J. P.
TI  - Mechanical vibrations
U1  - 629.13452 
PY  - 1956///
CY  - New York
PB  - McGraw-Hill
KW  - Mechanical vibrations
N1  - Price USD 6.00  (1 USD = LKR 183.55 as at 22.01.2019)
ER  -