Robert Blanchon,...[et al.] Robert Blanchon,...[et al. Robert E. Elcholz,...[et al.] Robert Franek...[et al.] Robert E. Elcholz,...[et al. Robert E. Hinson ... [et al.] Robert Franek...[et al. Albert M. Craig,...[et al.] Robert A. LeVine ... [et al.] Robert C. Pooley,...[et al.]