The Railway and engineering review. [s.n.].
Chicago-viite (17. p.)The Railway and Engineering Review. Chicago: [s.n.].
MLA-viite (8. p.)The Railway and Engineering Review. [s.n.].
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
The Railway and engineering review. [s.n.].
Chicago-viite (17. p.)The Railway and Engineering Review. Chicago: [s.n.].
MLA-viite (8. p.)The Railway and Engineering Review. [s.n.].