by Galen Gruman ... [et al.]. by Helen Palmer ... [et al.]. by Anis Koubaa ... [et al.]. by Irving Rein ... [et al.]. by Colin McEwan ... [et al.] ; by Helen Palmer...[et al.]. by P.D. Eastman ... [et al.]. by Dr. Seuss ... [et al.]. by P.D. Eastman ... [et al.] Ashley Hausman ... [et al.]