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by David E. Johnson (Birmingham Southern University); Johnny R. Johnson; John L. Hilburn; et al.
by Shanks, Hershel
by Gardener, Edward P. M.; Falzon, Joe; Falzon, Joe; et al.
by Open University
by Spooner, Peter
by Estreicher, Samuel
by Clary & Milano
by Robert S. Witte (san Jose State University); John S. Witte (Case Western Reserve University); Glenda Streetman Smith (Norris Harris College)
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