APA (7th ed.) Citation

Bohrer, R., & Hartwig, H. (1989). Index (8th ed.). Springer.

Chicago Style (17th ed.) Citation

Bohrer, Rainer, and Helga Hartwig. Index. 8th ed. Berlin: Springer, 1989.

MLA (9th ed.) Citation

Bohrer, Rainer, and Helga Hartwig. Index. 8th ed. Springer, 1989.