APA-ийн эшлэл(7 дахь хэвлэлт)

Levi, W. (1974). International politics: Foundations of the system. University of Minnesota Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Levi, Werner. International Politics: Foundations of the System. Minneapolis: University of Minnesota Press, 1974.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Levi, Werner. International Politics: Foundations of the System. University of Minnesota Press, 1974.