Morning Sun Books Inc
Pennsylvania Railroad Facilities in Color

Volume 6: Harrisburg Division Freight Lines
Walthers Part # 484-1362, p. 962 Walthers 2012 HO Scale Reference
A scale, $59.95, currently in stock at Walthers

 
This all-color book covers the freight-only lines of the Harrisburg Division A&S, Columbia Branch and smaller routes. Included are the facilities and trains that used them and well as special emphasis on Enola Yard and Columbia, Pa.