Samuel, L. R. (2009). Future: A recent history. University of Texas Press.
Chicago Style (17th ed.) ZitazioaSamuel, Lawrence R. Future: A Recent History. Austin: University of Texas Press, 2009.
MLA (9th ed.) ZitazioaSamuel, Lawrence R. Future: A Recent History. University of Texas Press, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.