APA-ийн эшлэл(7 дахь хэвлэлт)

Blumenthal, U. (1988). The investiture controversy: Church and monarchy from the ninth to the twelfth century. University of Pennsylvania Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Blumenthal, Uta-Renate. The Investiture Controversy: Church and Monarchy from the Ninth to the Twelfth Century. Philadelphia [Pa.]: University of Pennsylvania Press, 1988.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Blumenthal, Uta-Renate. The Investiture Controversy: Church and Monarchy from the Ninth to the Twelfth Century. University of Pennsylvania Press, 1988.