Robert V. Percival ... [et al.] Robert V. Percival ... [et al. Robert A. LeVine ... [et al.] Robert G. Smith ... [et al.] Robert E. Hinson ... [et al.] Edward H. Spence ... [et al.] Robert Woods ... [et al.] Edward L. Ayers ... [et al.] Gajendra Verma ... [et al.] Harry Cooper ... [et al.]