Pittsburgh, Pennsylvania (PB 567-813)
MLA
Plowden, David. Pittsburgh, Pennsylvania (PB 567-813). 1967. https://collections.library.yale.edu/catalog/2038558.
APA, 6th edition
Plowden, D. (1967). Pittsburgh, Pennsylvania (PB 567-813). https://collections.library.yale.edu/catalog/2038558.