TY - BOOK AU - Subrahmanyam,N AU - Lal,Brij TI - Waves and oscillations SN - 9780195393491 (hbk. : alk. paper) U1 - 530.124 22 PY - 1999/// CY - New Delhi PB - Vikash Publishing KW - Wave equation KW - Mathematical physics N1 - Includes bibliographical references and index ER -