کتاب های Robert Clawson
![Russian helmets. from kaska to stalshlyem 1916-2001](http://cdn.ketabkoo.com/covers/4/435218-n.jpg)
Russian helmets. from kaska to stalshlyem 1916-2001
Robert W. Clawson, 2002![Russian Helmets: from Kaska to Stalshlyem 1916-2001](http://cdn.ketabkoo.com/covers/4/435219-n.jpg)
Russian Helmets: from Kaska to Stalshlyem 1916-2001
Robert Clawson, 2002![Stahlhelm Evolution of the German Steel Helmet](http://cdn.ketabkoo.com/covers/8/808913-n.jpg)
Stahlhelm Evolution of the German Steel Helmet
Floyd R. Tubbs with the assistance of Robert W. Clawson![Russian helmets: from kaska to stalshlyem, 1916-2001](http://cdn.ketabkoo.com/covers/12/1255300-n.jpg)