1. Shaft engineering : papers presented at the Shaft Engineering conference
Author:
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Shafts )Excavations(-- Congresses
Classification :
TA
730
.
S45
1989
2. Shaft engineering : papers presented at the Shaft Engineering conference
Author: organized by the Institution of Mining and Metallurgy in association with the Institution of Civil Engineers and the Institution of Mining Engineers, and held in Harrogate, England, from 5 to 7 June, 9891
Library: Library of Razi Metallurgical Research Center (Tehran)
Subject: Congresses ، Shafts )Excavations(
Classification :
TA
730
.
S45
1989
