Contemporary history of the Civil War and Interregnum by a royalist. Gardiner, Samuel. History of England. London: Longmans, Green. 1899. OCLC 496808867
and poundage),及開展海關與貨物稅(英语:HM Customs and Excise)現代化。 王位空缺期(英语:Interregnum (England))和聯邦期間,残缺议会先後通過三項對英格蘭商務和殖民計劃有重大影響的法令:1650年8月1日的法令成立了貿易委員會,由小亨利·榮(英语:Henry
Hilda; Sharp, Margaret. Chapters in the Administrative History of Mediaeval England: The Wardrobe, the Chamber and the Small Seals. Manchester University Press