Van Troff's Cylinder
Van Troff's Cylinder is a social science fiction novel by Polish writer Janusz A . Zajdel . 
<triplet> Van Troff's Cylinder <subj> Polish <obj> country of origin <subj> Janusz A. Zajdel <obj> author <triplet> Janusz A. Zajdel <subj> Polish <obj> country of citizenship