APA (7th ed.) Citation

Clark, T., & Koch, R. (1999). The chemist's electronic book of orbitals [CD-ROM]. Springer.

Chicago Style (17th ed.) Citation

Clark, T., and Rainer Koch. The Chemist's Electronic Book of Orbitals [CD-ROM]. Berlin: Springer, 1999.

MLA (9th ed.) Citation

Clark, T., and Rainer Koch. The Chemist's Electronic Book of Orbitals [CD-ROM]. Springer, 1999.