Free Download An Introduction to Coal Technology… By N. Berkowitz (Auth.) Publisher Academic Press 1979 ISBN 978-0-12-091950-5,0120919508 Series..

Free Download Energy Conservation in the Process Industries… By W. F. Kenney (Auth.) Publisher Academic Press 1984 ISBN 978-0-08-092401-4,0-12-404220-1,0080924018..