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by Garcia Del Castillo, Jose A.; Espada, Jose Pedro; Segura, Ma Carmen; et al.
by Kaufmann, Paul; Castillo, Pedro A.
by Castillo-ramirez, Alonso; De Oliveira, Pedro P. B.
by Castillo, Pedro A.; Laredo, Juan Luis Jiménez
by Pedro A. Castillo; ?Juan Luis Jiménez Laredo; ?Francisco Fernández de Vega
by Davidson, James West; Carnes, Mark C.; Castillo, Pedro; et al.
by Davidson, James West; Castillo, Pedro; Stoff, Michael B.
by Castillo, Pedro; Davidson, James West; Stoff, Michael B.
by Davidson, James West; Castillo, Pedro G.; Stoff, Michael B.