Long and short span railway bridges.
By: By John A. Roebling.
Series: American culture series -- 119.9.
Publisher: Van Nostrand
Place of publication: New York
Language: eng
Number of pages: 50
Subjects: Bridges; Trusses
Notes: Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 119.9)