APA (7th ed.) Citation

Heyn, U. (1997). Peacemaking in medieval Europe: A historical & bibliographical guide. Regina Books.

Chicago Style (17th ed.) Citation

Heyn, Udo. Peacemaking in Medieval Europe: A Historical & Bibliographical Guide. Claremont, Calif: Regina Books, 1997.

MLA (9th ed.) Citation

Heyn, Udo. Peacemaking in Medieval Europe: A Historical & Bibliographical Guide. Regina Books, 1997.

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