APA (7th ed.) Citation

Kopp, G., & Fröhlich, K. (1992). Pingpong 1. Max Hueber.

Chicago Style (17th ed.) Citation

Kopp, Gabriele, and Konstanze Fröhlich. Pingpong 1. München: Max Hueber, 1992.

MLA (9th ed.) Citation

Kopp, Gabriele, and Konstanze Fröhlich. Pingpong 1. Max Hueber, 1992.

Warning: These citations may not always be 100% accurate.