Cite

Rowland and Fortiner's map of Portland and vicinity.

MLA

Rowland, and Fortiner. Rowland and Fortiner's Map of Portland and Vicinity. Rowland and Fortiner, 1909. https://collections.library.yale.edu/catalog/15821592.

APA, 6th edition

R., & F. (1909). Rowland and Fortiner's map of Portland and vicinity. [Maps]. Rowland and Fortiner, https://collections.library.yale.edu/catalog/15821592.