TY - BOOK AU - Paez, Thomas L. AU - Wirsching, Paul H., coaut.Yao, James T.P., coaut. TI - Optimum design of seismic structures / by Thomas L. Paez, P-aul H.Wirsching and James T. P. Yao CY - Albuquerque, Nuevo Mexico : University of New Mexico, Bureau of Engineering Research ER -