Citazione Stile APA (7a Edizione)

Ley, W., Wittmann, K., & Hallmann, W. (2009). Handbook of space technology. Wiley.

Citazione stile Chigago Style (17a edizione)

Ley, Wilfried, Klaus Wittmann, e Willi Hallmann. Handbook of Space Technology. Chichester, U.K.: Wiley, 2009.

Citatione MLA (8a ed.)

Ley, Wilfried, et al. Handbook of Space Technology. Wiley, 2009.