APA-ийн эшлэл(7 дахь хэвлэлт)

Nsiah, J., & Walker, K. (2013). The servant: Leadership role of Catholic high school principals. SensePublishers.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Nsiah, Joseph, ба Keith Walker. The Servant: Leadership Role of Catholic High School Principals. Rotterdam ; Boston: SensePublishers, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Nsiah, Joseph, ба Keith Walker. The Servant: Leadership Role of Catholic High School Principals. SensePublishers, 2013.