APA (7th ed.) Citation

SpringerLink (Online service), Courbin, F., & Minniti, D. (2002). Gravitational lensing: An astrophysical tool. Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), F. Courbin, and D. Minniti. Gravitational Lensing: An Astrophysical Tool. Berlin ; New York: Springer, 2002.

MLA (9th ed.) Citation

SpringerLink (Online service), et al. Gravitational Lensing: An Astrophysical Tool. Springer, 2002.