Tunnels and shafts in rock “Engineer manual”

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Tunnels and shafts in rock “Engineer manual”

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Tunnels and shafts in rock “Engineer manual”
Categoria
Fecha
1978
Autor
Departament of the Army Corps of Engineers
Cita
Departament of the Army Corps of Engineers. (1978). Tunnels and shafts in rock "engineer manual".
Registro
109
Item No.
109

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