Cita APA (7th ed.)
Jacobs, K., & Jungnickel, D. (2004). Einführung in die Kombinatorik (2nd and extended ed.). W. de Gruyter.
Cita Chicago (17th ed.)
Jacobs, Konrad, i Dieter Jungnickel. Einführung in Die Kombinatorik. 2nd and extended ed. Berlin ; New York: W. de Gruyter, 2004.
Cita MLA (9th ed.)
Jacobs, Konrad, i Dieter Jungnickel. Einführung in Die Kombinatorik. 2nd and extended ed. W. de Gruyter, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.