Richard C. Yorkey,...[etal.] Richard C. Yorkey,...[et al.] Richard C. Yorkey,...[etal. Richard C. Yorkey,...[et al. Richard C. Yorkey...[et al.] Richard C. Yorkey...[et al. Richard P. Vine,...[et al.] Richard X. Bailey...[et al.] Richard P. Vine,...[et al. Richard X. Bailey...[et al.