Two papers discussing the subject from the point of economy. (3500 w.) (No. 47219 E)
I. Wooden sleepers or iron sleepers
Bul Int Ry Cong
1913
Article (Journal)
English
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Wooden sleepers or iron sleepers
Engineering Index Backfile | 1914
|Iron sleepers and wooden sleepers
Engineering Index Backfile | 1909
Wooden sleepers or iron sleepers
Engineering Index Backfile | 1913
|Wooden sleepers or iron sleepers
Engineering Index Backfile | 1913
|Engineering Index Backfile | 1954