Bertram L. Linder,...[et al.] Andrew B. Crider,...[et al.] Henry L. Roediger,...[et al.] texts by Rob Sinder...[et al.] Alan P. Wagner,...[et al.] Douglas Ehninger,... [et al.] Robert C. Pooley,...[et al.] Charles F. Turner,...[et al.] Robert E. Elcholz,...[et al.] Albert M. Craig,...[et al.]