THANK YOU COUNTRYMEN. History of underground communications in the Country and for the needs of the Home Army in the West with a foreword by General S. Kopanski. Compiled by the Historical Committee of the Union of Liaison Workers. London 1973, Polish Cultural Foundation. Printed by Caldra House. Format 14/22 cm. p. 278, [7] f., with plates, [3] charts and sketches. Publishers' cloth covers, dark blue. Gilt lettering on spine and face of binding. Wrapper designed by Andrzej Popkiewicz.