APA-ийн эшлэл(7 дахь хэвлэлт)

Ulrich, D., Smallwood, W. N., & Sweetman, K. (2008). The Leadership Code: Five Rules to Lead by. Harvard Business Review Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Ulrich, David, W. Norm Smallwood, ба Kate Sweetman. The Leadership Code: Five Rules to Lead by. Boston, Massachesutts: Harvard Business Review Press, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Ulrich, David, et al. The Leadership Code: Five Rules to Lead by. Harvard Business Review Press, 2008.