1. Mining mechanically
Author: by S.C. Walker...)et al.(
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Coal - mining machinery
Classification :
TN
813
.
M4517
2. Mining mechanically
Author: by S. C. Walker ... ]et al.[
Library: Central Library of Amirkabir University of Technology (Tehran)
Subject: Coal-mining machinery
Classification :
TN
813
.
M4517
