Verger, F., Sourbes - Verger, I., Ghirardi, R., Pasco, X., Logsdon, J. M., Lyle, S., & Reilly, P. (2003). The Cambridge encyclopedia of space: Missions, applications and exploration. Cambridge: Cambridge University Press.

Verger, Fernand, Isabelle Sourbes - Verger, Raymond Ghirardi, Xavier Pasco, John M. Logsdon, Stephen Lyle, and Paul Reilly. The Cambridge Encyclopedia of Space: Missions, Applications and Exploration. Cambridge: Cambridge University Press, 2003.

Verger, Fernand, et al. The Cambridge Encyclopedia of Space: Missions, Applications and Exploration. Cambridge: Cambridge University Press, 2003.