Portland Railroad :
Part I, historical development and operations /
by O.R. Cummings.
APA Citation
Cummings, O. Richard. (1957). Portland Railroad: Part I, historical development and operations. Warehouse Point, Conn.: Connecticut Valley Chapter, National Railway Historical Society.
MLA Citation
Cummings, O. Richard. Portland Railroad: Part I, Historical Development And Operations. Warehouse Point, Conn.: Connecticut Valley Chapter, National Railway Historical Society, 1957.
Warning: These citations may not always be complete (especially for serials).