APA (7th ed.) Citation

Frisch, A., & Frisch, M. J. (2003). Gaussian 03 user's reference. Gaussian.

Chicago Style (17th ed.) Citation

Frisch, AEleen, and Michael J. Frisch. Gaussian 03 User's Reference. Pittsburgh, PA: Gaussian, 2003.

MLA (9th ed.) Citation

Frisch, AEleen, and Michael J. Frisch. Gaussian 03 User's Reference. Gaussian, 2003.