DK Eyewitness Travel Guide: Philadelphia & The Pennsylvania Dutch Country

Philadelphia Liberty Trail: Trace the Path of America’s Heritage

Pennsylvania Railroad: Its Origins, Construction, Condition, and Connections

Pocketguide to Pennsylvania Hatches

Rockhounding Pennsylvania and New Jersey: A Guide To The States’ Best Rockhounding Sites (Rockhounding Series)

New Jersey Day Trips: A Guide to Outings in New Jersey and Nearby Areas of New York, Pennsylvania, and Delaware