[by] E. L. Barger [and others] by C. H. Bamford and others. by D. W. Turner [and others] by M. Barrere and others. by S. W. Pearson and others. by E.L. Willey [and others] by R. H. Boll and others. by L. Dillinger [and others] by P. B. Hirsch [and others] by D. W. Appel [and others]