APA aipamena

Kirchner, W. (1968). Middle ages [375-1492]. Barnes & Noble Books.

Chicago Style aipamena

Kirchner, Walther. Middle Ages [375-1492]. New York: Barnes & Noble Books, 1968.

MLA aipamena

Kirchner, Walther. Middle Ages [375-1492]. Barnes & Noble Books, 1968.