APA (7th ed.) Citation

Einhard 770-840 & Notker Balbulus 840-912. (1907). Early lives of Charlemagne. Chatto and Windus.

Chicago Style (17th ed.) Citation

Einhard 770-840 and Notker Balbulus 840-912. Early Lives of Charlemagne. London: Chatto and Windus, 1907.

MLA (9th ed.) Citation

Einhard 770-840 and Notker Balbulus 840-912. Early Lives of Charlemagne. Chatto and Windus, 1907.

Warning: These citations may not always be 100% accurate.