por Malley, James O | Popov, Egor P., coaut | University of California, Berkeley. Earthquake Engeneering -Research Center.
por Malley, James O [autor] | Popov, E. P. (Egor Paul), 1913- [autor] | University of California, Berkeley. Earthquake Engineering Research Center | National Science Foundation (Estados Unidos).
por Popov, Egor P | Malley, James O., coaut | University of California, Berkeley. Earthquake Engineering -Research Center.