APA (7th ed.) Citation

Keukert, M., & Kollewe, T. (2014). Praxiswissen E-Commerce (1st edition.). O'Reilly Verlag.

Chicago Style (17th ed.) Citation

Keukert, Michael, and Tobias Kollewe. Praxiswissen E-Commerce. 1st edition. O'Reilly Verlag, 2014.

MLA (9th ed.) Citation

Keukert, Michael, and Tobias Kollewe. Praxiswissen E-Commerce. 1st edition. O'Reilly Verlag, 2014.

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