_:vb6794378	<http://purl.org/dc/terms/bibliographicCitation>	"1948, The Army Air Forces in World War II, volume 3, Office of Air Force History, \u2192ISBN, page 495:"@en .
_:vb6794378	<http://www.w3.org/1999/02/22-rdf-syntax-ns#value>	"Many types of nickels were used in psychological warfare. Classified according to general purpose, there were strategic and tactical leaflets."@en .