APA (7th ed.) Citation

Plieninger, J. (2004). Sparen. BiB OPL-Kommission.

Chicago Style (17th ed.) Citation

Plieninger, Jürgen. Sparen. www.bib-info.de/komm/opl/pub/check3.pdf: BiB OPL-Kommission, 2004.

MLA (8th ed.) Citation

Plieninger, Jürgen. Sparen. BiB OPL-Kommission, 2004.