کتاب های Ronald L. Lewis
![Welsh Americans: A History of Assimilation in the Coalfields](http://cdn.ketabkoo.com/covers/7/783563-n.jpg)
Welsh Americans: A History of Assimilation in the Coalfields
Ronald L. Lewis, 2008![The mathematics of Paul Erdos](http://cdn.ketabkoo.com/covers/9/982760-n.jpg)
The mathematics of Paul Erdos
Ronald Lewis Graham, 1997![The Mathematics of Paul Erdös I (Algorithms and Combinatorics)](http://cdn.ketabkoo.com/covers/9/982762-n.jpg)
The Mathematics of Paul Erdös I (Algorithms and Combinatorics)
Ronald Lewis Graham, 1996![Journal of the History of Philosophy Volume 8, Number 2, January 1970](http://cdn.ketabkoo.com/covers/13/1312628-n.jpg)
Journal of the History of Philosophy Volume 8, Number 2, January 1970
Ronald Hathaway, Michael J. Buckley, Edward W. Strong, Catherine S. Frazer, Harry M. Bracken, Christopher Aronson, Douglas Lewis Herbert, Wallace Schneider, W. C. Kneale, 1970![Making Workers Soviet: Power, Class, and Identity](http://cdn.ketabkoo.com/covers/13/1395797-n.jpg)