Portland Railroad :
Part II, rolling stock, carhouses, power supply /
by O.R. Cummings.
APA Citation
Cummings, O. R. (Osmond Richard)., Armentrout, D. (1957). Portland Railroad: Part II, rolling stock, carhouses, power supply. Warehouse Point, Conn.: Connecticut Valley Chapter, National Railway Historical Society.
MLA Citation
Cummings, O. R. (Osmond Richard), and David Armentrout. Portland Railroad: Part II, Rolling Stock, Carhouses, Power Supply. Warehouse Point, Conn.: Connecticut Valley Chapter, National Railway Historical Society, 1957.
Warning: These citations may not always be complete (especially for serials).