APA (7th ed.) Citation

Lambert, M. (1994). Medieval heresy: Popular movements from the Gregorian reform to the reformation (2nd ed.). Blackwell.

Chicago Style (17th ed.) Citation

Lambert, Malcolm. Medieval Heresy: Popular Movements from the Gregorian Reform to the Reformation. 2nd ed. Oxford [etc.]: Blackwell, 1994.

MLA (9th ed.) Citation

Lambert, Malcolm. Medieval Heresy: Popular Movements from the Gregorian Reform to the Reformation. 2nd ed. Blackwell, 1994.

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