APA (7th ed.) Citation

Pirenne, H. (1939). A history of Europe from the invasions to the XVI century. George Allen & Unwin.

Chicago Style (17th ed.) Citation

Pirenne, Henri. A History of Europe from the Invasions to the XVI Century. London: George Allen & Unwin, 1939.

MLA (9th ed.) Citation

Pirenne, Henri. A History of Europe from the Invasions to the XVI Century. George Allen & Unwin, 1939.