Cita APA (7a ed.)

Brown, L. R., flavinm, c., & kanem hal. (1996). Vital signs: The trends that are shaping our future. W.W. norton company.

Cita Chicago Style (17a ed.)

Brown, Lester R., christopher flavinm, y kanem hal. Vital Signs: The Trends That Are Shaping Our Future. new york: W.W. norton company, 1996.

Cita MLA (9a ed.)

Brown, Lester R., et al. Vital Signs: The Trends That Are Shaping Our Future. W.W. norton company, 1996.