Citazione Stile APA (7a Edizione)

O'Brien, K., Horne, K., Gomer, R., Oke, J., & van der Klis, M. (2004). High-speed Keck II and RXTE spectroscopy of Cygnus X-2 - I. Three X-ray components revealed by correlated variability.

Citazione stile Chigago Style (17a edizione)

O'Brien, K., K. Horne, R. Gomer, J. Oke, e M. van der Klis. High-speed Keck II and RXTE Spectroscopy of Cygnus X-2 - I. Three X-ray Components Revealed by Correlated Variability. 2004.

Citatione MLA (9a ed.)

O'Brien, K., et al. High-speed Keck II and RXTE Spectroscopy of Cygnus X-2 - I. Three X-ray Components Revealed by Correlated Variability. 2004.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.