Cita APA (7a ed.)

Cayrel, R., Smith, F. G., Fisher, A. J., & Boer, J. B. d. (1980). Guide lines for minimizing urban sky glow near astronomical observatories. International Astronomical Union : Comission Internationale de l'Éclirage.

Cita Chicago Style (17a ed.)

Cayrel, R., F. G. Smith, A. J. Fisher, y J. B. de Boer. Guide Lines for Minimizing Urban Sky Glow Near Astronomical Observatories. [Paris]: International Astronomical Union : Comission Internationale de l'Éclirage, 1980.

Cita MLA (9a ed.)

Cayrel, R., et al. Guide Lines for Minimizing Urban Sky Glow Near Astronomical Observatories. International Astronomical Union : Comission Internationale de l'Éclirage, 1980.