APA (7th ed.) Citation

SpringerLink (Online service), Gomberoff, A., & Marolf, D. (2005). Lectures on Quantum Gravity. Springer US.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Andrés Gomberoff, and Donald Marolf. Lectures on Quantum Gravity. Boston, MA: Springer US, 2005.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Lectures on Quantum Gravity. Springer US, 2005.