- Listenly
- Public Library
- Project Gutenberg
- Canals, Interoceanic
Canals, Interoceanic — Audiobooks
L'isthme de Panama
by Michel Chevalier
A Succinct View of the Importance and Practicability of Forming a Ship Canal across the Isthmus of Panama
by H. R. Hill
Is a Ship Canal Practicable?
by S. T. (Silvanus Thayer) Abert