Cita APA (7a ed.)

Worldwatch Institute, Naciones Unidas. Programa para el Medio Ambiente, & Abramovitz, J. N. (2001). Vital signs 2001: The trends that are shaping our future. W.W. Norton & Company.

Cita Chicago Style (17a ed.)

Worldwatch Institute, Naciones Unidas. Programa para el Medio Ambiente, y Janet N. Abramovitz. Vital Signs 2001: The Trends That Are Shaping Our Future. New York [etc.]: W.W. Norton & Company, 2001.

Cita MLA (9a ed.)

Worldwatch Institute, et al. Vital Signs 2001: The Trends That Are Shaping Our Future. W.W. Norton & Company, 2001.