To Prince Ferdinand of Brunswich, this plan of the battle of Thonhausen ... by William Roy, captain of engineers, & assistant quatermaster general of the British forces. Surveyed & drawn by Capt. William Roy. Engraved by Thos: Major.
MLA
To Prince Ferdinand of Brunswich, This Plan of the Battle of Thonhausen ... by William Roy, Captain of Engineers, & Assistant Quatermaster General of the British Forces. Surveyed & Drawn by Capt. William Roy. Engraved by Thos: Major. T. Major, 1760. https://collections.library.yale.edu/catalog/15479711.
APA, 6th edition
To Prince Ferdinand of Brunswich, this plan of the battle of Thonhausen ... by William Roy, captain of engineers, & assistant quatermaster general of the British forces. Surveyed & drawn by Capt. William Roy. Engraved by Thos: Major. (1760). [Maps]. T. Major, https://collections.library.yale.edu/catalog/15479711.