H.Robert Patterson ... [et al]. Robert K. Paterson ... [et al.] Robert Anderson ... [et al.] Kerry Patterson ... [et al.] Robert Parker ...[et al.] Robert Fisher ... [et al.] Robert J. Gorlin ... [et al.] ed. by Robert A. Pastorok ... [et al.] Robert J. Sternbery ... [et al.] Robert Kirkman ... [et al.]