APA-ийн эшлэл(7 дахь хэвлэлт)

Wickham, C. (2008). Productive forces and the economic logic of the feudal mode of production.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Wickham, C. Productive Forces and the Economic Logic of the Feudal Mode of Production. 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Wickham, C. Productive Forces and the Economic Logic of the Feudal Mode of Production. 2008.