Cita APA (7a ed.)

Agencia Europea de Medio Ambiente, Greeuw, S. C. H., & Ribeiro, T. (2000). Cloudy crystal balls: An assessment of recent European and global scenario studies and models. Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Agencia Europea de Medio Ambiente, Sandra C. H. Greeuw, y Teresa Ribeiro. Cloudy Crystal Balls: An Assessment of Recent European and Global Scenario Studies and Models. Luxembourg: Office for Official Publications of the European Communities, 2000.

Cita MLA (9a ed.)

Agencia Europea de Medio Ambiente, et al. Cloudy Crystal Balls: An Assessment of Recent European and Global Scenario Studies and Models. Office for Official Publications of the European Communities, 2000.