00291nam a2200109Ia 4500008004100000041001200041082002200053100002500075245003500100260003800135300000800173231217s9999    xx            000 0 und d  aEnglish  a335.409  PRO;1  R  aProgress Publishers. 0aFrederick Engels : a biography  c1974bProgress PublishersaMoscow  a510