TY  - BOOK
AU  - Den Hartog, J. P
TI  - Mechanical vibrations
SN  - 0486464199
U1  - 620.1123 
PY  - 2007///
CY  - New Delhi
PB  - Dover Publications. Inc
N1  - "It includes bibliographical references, Appendix (p 429-436) and Index"
ER  -