Cite

Blanchard's map of Chicago : with the new street names.

MLA

Blanchard's Map of Chicago : with the New Street Names. Rufus Blanchard, 1906. https://collections.library.yale.edu/catalog/15952225.

APA, 6th edition

Blanchard's map of Chicago : with the new street names. (1906). [Maps]. Rufus Blanchard, https://collections.library.yale.edu/catalog/15952225.