Robert V. Percival ... [et al.] Robert A. LeVine ... [et al.] Robert G. Smith ... [et al.] Robert E. Hinson ... [et al.] Robert Woods ... [et al.] Harry Cooper ... [et al.] Rob Carter ... [et al.] by P.D. Eastman ... [et al.] by Robert Franek ... [et al.] Brian D. Smith ... [et al.]