Brown, L. R., flavinm, c., & kanem hal. (1996). Vital signs: The trends that are shaping our future. W.W. norton company.
Citación estilo ChicagoBrown, Lester R., christopher flavinm, and kanem hal. Vital Signs: The Trends That Are Shaping Our Future. new york: W.W. norton company, 1996.
Cita MLABrown, Lester R., et al. Vital Signs: The Trends That Are Shaping Our Future. W.W. norton company, 1996.
Warning: These citations may not always be 100% accurate.