Primer : a guide to the City of Philadelphia
MLA
Philadelphia City Paper. Primer : a guide to the City of Philadelphia. [Philadelphia, Pa.] : Philadelphia City Paper.
APA
Philadelphia City Paper. (2000). Primer : a guide to the City of Philadelphia. [Philadelphia, Pa.] : Philadelphia City Paper.
Chicago
Philadelphia City Paper. Primer : a guide to the City of Philadelphia. [Philadelphia, Pa.] : Philadelphia City Paper.