1. Coal preparation
Author: / Editors: Joseph W. Leonard and David R Mitchell. Associate editors: Kenneth K. Humphreys [and others]
Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)
Subject: Coal preparation
Classification :
TN
816
.
C6
1979
2. Coal preparation
Author: / Editors: Joseph W. Leonard and David R Mitchell. Associate editors: Kenneth K. Humphreys [and others]
Library: Tehran University, technical faculty libraries 1 (Tehran)
Subject: Coal preparation
Classification :
TN
816
.
C6
1979
3. Reaching the peasant farmer
Author: / David K. Leonard
Library: Central Library and Documents Center of Mazandaran University (Mazandaran)
Subject: Agricultural extension work- Kenya,Peasantry- Kenya
Classification :
S544
.
5
.
K4
,
L45
