MLA

Ram, Johannes de, 1648-1693. Comitatus Flandriae universe in ditiones peculiares distinctae : tabula nova & accuratissima / auctore Ioanne de Ram.. BRBL_00088. [between 1682 and 1689]. https://collections.library.yale.edu/catalog/15352350.

APA, 6th edition

Ram, Johannes de, 1648-1693. (["BRBL_00088"])([between 1682 and 1689])[Comitatus Flandriae universe in ditiones peculiares distinctae : tabula nova & accuratissima / auctore Ioanne de Ram.]. https://collections.library.yale.edu/catalog/15352350.