TY - BOOK AU - Gupta,Ajaya K. TI - Response spectrum method in seismic analysis and design of structures T2 - New directions in civil engineering AV - TA654.6 .G87 PY - 1990/// CY - Boca Raton PB - CRC KW - Earthquake engineering KW - Structural engineering KW - Seismic waves N1 - Includes bibliographical references and indexes ER -