MLA

Berry, William, fl. 1669-1708. The kingdom of Hungary and the states that have been subject to it which are now the northern parts of Turkey in Europe. [168-?]. https://collections.library.yale.edu/catalog/2046664.

APA, 6th edition

Berry, William, fl. 1669-1708. ([168-?])[The kingdom of Hungary and the states that have been subject to it which are now the northern parts of Turkey in Europe]. https://collections.library.yale.edu/catalog/2046664.