Turkey in Asia [cartographic material].
MLA
Blackie, W. G. (Walter Graham), 1816-1906. Turkey in Asia [cartographic material].. BRBL_00276. [1850]. https://collections.library.yale.edu/catalog/15506311.
APA, 6th edition
Blackie, W. G. (Walter Graham), 1816-1906. (["BRBL_00276"])([1850])[Turkey in Asia [cartographic material].]. https://collections.library.yale.edu/catalog/15506311.