Guillén, M. F. (2023). The perennials: The megatrends creating a postgenerational society. St. Martin's Press.
Chicago Style (17th ed.) ZitazioaGuillén, Mauro F. The Perennials: The Megatrends Creating a Postgenerational Society. New York: St. Martin's Press, 2023.
MLA (9th ed.) ZitazioaGuillén, Mauro F. The Perennials: The Megatrends Creating a Postgenerational Society. St. Martin's Press, 2023.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.