APA (7th ed.) Citation

Wilson, R. H. (1968). Philadelphia: Official handbook for visitors (New rev. ed.). Hammond.

Chicago Style (17th ed.) Citation

Wilson, Robert H. Philadelphia: Official Handbook for Visitors. New rev. ed. [Maplewood, N.J.]: Hammond, 1968.

MLA (9th ed.) Citation

Wilson, Robert H. Philadelphia: Official Handbook for Visitors. New rev. ed. Hammond, 1968.