By Gregersen, Edgar..
Barcelona Ediciones Folio 1988 .
320 p. , Translation of : Sexual practices. 8475830250

By Townsend, Robert.
Barcelona Ediciones Folio 1987 .
298 p. , Translation of : Further up the organization. 8475830757

Barcelona Ediciones Folio 1985 .
254 p. , Translation of : Flags and arms across the world 8485902858

By Waterman, Robert H..
Barcelona Ediciones Folio 1989 .
300 p. , Translation of: The renewal factor. 9684583850 (rústica)

By Grisham, John.
Barcelona : Ediciones Folio, 2000 .
414 pages ; 23 cm.
8440681798 (hb.)