H. A. Lorentz ...[et al.]. by Park French ...[et al.]. by G. B. Dantzig ...[et al.]. Harold W. Sorenson ...[et al.]. Richard N. Current ...[et al.]. Arthur P. Boresi ... [et al.]. Thomas E. French ... [et al.]. by N. Surprenant ... [et al.]. Richard N. Current ... [et al.]. Donald L. Katz ...[et al.].