[Street map of Portland, Or.].
MLA
[Street Map of Portland, Or.]. Henry R. Staats?], 0AD. https://collections.library.yale.edu/catalog/15821596.
APA, 6th edition
[Street map of Portland, Or.]. (0 C.E.). [Maps]. Henry R. Staats?], https://collections.library.yale.edu/catalog/15821596.