Kahn, H. (1967). The Year 2000: A Framework for Speculation on the Next Thirty-three Years. New York: The MacMillan Company.
Chicago Style aipamenaKahn, Herman. The Year 2000: A Framework for Speculation On the Next Thirty-three Years. New York: The MacMillan Company, 1967.
MLA aipamenaKahn, Herman. The Year 2000: A Framework for Speculation On the Next Thirty-three Years. New York: The MacMillan Company, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.