W. Richard Stevens [et al.]. J. Michael Geringer [et al.]. Richard Eden ... [et al.]. Richard Goff [et al.]. Richard Moyer...[et al.]. Richard P. Barth [et al.]. Yuri Bazilevs [et al.]. by Richard T. Ely ...[et al.]. Richard K. Frevert ...[et al.]. by Richard, T. Ely ...[et al.].