MLA

Ram, Johannes de, 1648-1693, printmaker. Voornaamste gebouwen vande stadt Romen t'Amsterdam. [approximately 1690]. https://collections.library.yale.edu/catalog/33102902.

APA, 6th edition

Ram, Johannes de, 1648-1693, printmaker. ([approximately 1690])[Voornaamste gebouwen vande stadt Romen t'Amsterdam]. https://collections.library.yale.edu/catalog/33102902.