APA (7th ed.) Citation

Craig, I., Craig, I. R., & Manolopoulos, D. (2006). Ring polymer molecular dynamics.

Chicago Style (17th ed.) Citation

Craig, I., Ian R. Craig, and D. Manolopoulos. Ring Polymer Molecular Dynamics. 2006.

MLA (9th ed.) Citation

Craig, I., et al. Ring Polymer Molecular Dynamics. 2006.