Prentis, J. M. Mechanical vibrations : An introduction to matrix methods / J. M. Prentis and F. A. Leckie. - London : Longmans, c 1963. - viii, 141 p. : ill. ; 22 cm. Includes index. 319 319 Subjects--Topical Terms: Matrices. Dewey Class. No.: 620.3 / P919m