APA-ийн эшлэл(7 дахь хэвлэлт)

Hoffmann, N., & Platen, A. (2013). Loyalty schemes in retailing: A comparison of stand-alone and multi-partner programs. PL Academic Research.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hoffmann, Nicolas, ба Atelier Platen. Loyalty Schemes in Retailing: A Comparison of Stand-alone and Multi-partner Programs. Frankfurt am Main, Germany: PL Academic Research, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hoffmann, Nicolas, ба Atelier Platen. Loyalty Schemes in Retailing: A Comparison of Stand-alone and Multi-partner Programs. PL Academic Research, 2013.