by Elbert C. Herrick ... [et al.]. Robert G. Murdick ... [et al.]. by Robert U. Ayres ... [et al.]. by Roberto Serra ... [et al.]. by Roger S. Haydock ... [et al.] by Robert M. Johnston ... [et al.]. by Robert Cook ... [et al.] Robert C. Meier ... [et al.] Robert C. Reardon ... [et al.]. by Herbert C. Conn, Jr. ... [et al.].