APA-ийн эшлэл(7 дахь хэвлэлт)

Heppell, T. (2008). Choosing the Tory leader: Conservative Party leadership elections from Heath to Cameron. Tauris Academic Studies.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Heppell, Timothy. Choosing the Tory Leader: Conservative Party Leadership Elections from Heath to Cameron. London: Tauris Academic Studies, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Heppell, Timothy. Choosing the Tory Leader: Conservative Party Leadership Elections from Heath to Cameron. Tauris Academic Studies, 2008.