por WACKERLY, Dennis D | MENDENHALL, William, III [aut.] | SCHEAFFER, Richard L [aut.] | ROMO Muñoz, Jorge Humberto [tr.].
por Mendenhall, William III, / autor | Beaver, Robert J [ / autor] | Beaver, Barbara M [ / autor] | Velázquez Arellano, Jorge Alberto [ / traductor].