by S. W. Pearson ..[et al.]. by R. L. Hobson ...[et al.]. Judy C. Pearson ... [et al.]. by J. P. Fulton ...[et al.]. by L. S. Pontryagin ...[et al.]. by S. C. Kang ...[et al.]. by S.S. Penner ... [et al.]. by S.A.K. Palmer ... [et al.]. by W. P. Lipscomb ...[et al.]. Roland E. Larson ...[et al.].