The convention between the Crowns of Great Britain and Spain, concluded at the Pardo [sic] on the 14th of January 1739, N.S. ...

MLA

Great Britain. The convention between the Crowns of Great Britain and Spain, concluded at the Pardo [sic] on the 14th of January 1739, N.S. ... London : printed by Samuel Buckley, 1739.

APA

Great Britain. (1739). The convention between the Crowns of Great Britain and Spain, concluded at the Pardo [sic] on the 14th of January 1739, N.S. ... London : printed by Samuel Buckley.

Chicago

Great Britain. The convention between the Crowns of Great Britain and Spain, concluded at the Pardo [sic] on the 14th of January 1739, N.S. ... London : printed by Samuel Buckley, 1739.