3. A primer of oilwell drilling /

Author:

Library: Center and Library of Islamic Studies in European Languages (Qom)

Subject: Oil well drilling.,Oil well drilling.

Classification :
TN871
.
2
.
B316
2008

4. Accounting and business methods for contractors

Library: Central Library and Archive Center of shahid Beheshti University (Tehran)

Subject: Contractors' operations,Cost accounting,-- Accounting

Classification :
657
.
42
D584A
1924