Polscy robotnicy rolni na Śląsku pod panowaniem niemieckim na tle wychodźstwa do Rzeszy 1918-1932 = Polish farm labourers in Silesia under German rule, viewed against the background of emigration to the German Reich in the years 1918-1932 - Fiedor, Karol 1927-2010 (Ossolineum, 1968)