Brown, L. R., flavinm, c., & kanem hal. (1996). Vital signs: The trends that are shaping our future. W.W. norton company.
Style de citation Chicago (17e éd.)Brown, Lester R., christopher flavinm, et kanem hal. Vital Signs: The Trends That Are Shaping Our Future. new york: W.W. norton company, 1996.
Style de citation MLA (9e éd.)Brown, Lester R., et al. Vital Signs: The Trends That Are Shaping Our Future. W.W. norton company, 1996.