APA (7th ed.) Citation

Chaplais, P. (1982). English medieval diplomatic practice / by Pierre Chaplais. HMSO.

Chicago Style (17th ed.) Citation

Chaplais, Pierre. English Medieval Diplomatic Practice / by Pierre Chaplais. London: HMSO, 1982.

MLA (9th ed.) Citation

Chaplais, Pierre. English Medieval Diplomatic Practice / by Pierre Chaplais. HMSO, 1982.

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