MLA

Bowles's European Geographical Amusement, or, Game of Geography : Designed from The Grand Tour of Europe, by Dr. Nugent. Printed for the proprietors Bowles & Carver, 1795. https://collections.library.yale.edu/catalog/2034870.

APA, 6th edition

Bowles's European geographical amusement, or, Game of geography : designed from The grand tour of Europe, by Dr. Nugent. (1795). [Maps, Early works to 1800, Maps Europe 1795, Publishers' advertisements, Hand-colored illustrations]. Printed for the proprietors Bowles & Carver. https://collections.library.yale.edu/catalog/2034870.