Great Britain. Anno regni Georgii II. regis Magnæ Britanniæ, Franciæ, & Hiberniæ, tricesimo. At the Parliament begun ... the thirty first day of May, ... 1754. ... And from thence continued ... to the second day of December, 1756.
Chicago Style (17th ed.) CitationGreat Britain. Anno Regni Georgii II. Regis Magnæ Britanniæ, Franciæ, & Hiberniæ, Tricesimo. At the Parliament Begun ... the Thirty First Day of May, ... 1754. ... And from Thence Continued ... to the Second Day of December, 1756.
MLA (9th ed.) CitationGreat Britain. Anno Regni Georgii II. Regis Magnæ Britanniæ, Franciæ, & Hiberniæ, Tricesimo. At the Parliament Begun ... the Thirty First Day of May, ... 1754. ... And from Thence Continued ... to the Second Day of December, 1756.
Warning: These citations may not always be 100% accurate.