APA aipamena

Brown, L. R. (1999). Vital Sings 1999: The trends that are shaping our future. New York: W. W. Norton & company.

Chicago Style aipamena

Brown, Lester R. Vital Sings 1999: The Trends That Are Shaping Our Future. New York: W. W. Norton & company, 1999.

MLA aipamena

Brown, Lester R. Vital Sings 1999: The Trends That Are Shaping Our Future. New York: W. W. Norton & company, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.