Bertram L. Linder,...[et al.] Bertram L. Linder,...[et al. Andrew B. Crider,...[et al.] Alan P. Wagner,...[et al.] Andrew B. Crider,...[et al. Douglas Ehninger,... [et al.] Henry L. Roediger,...[et al.] Robert C. Pooley,...[et al.] texts by Rob Sinder...[et al.] Alan P. Wagner,...[et al.