Hartcup, G. (1970). The challenge of war: Britain's scientific and engineering contributions to World War Two. Taplinger Publishing Co.
Chicago Style (17th ed.) CitationHartcup, Guy. The Challenge of War: Britain's Scientific and Engineering Contributions to World War Two. New York: Taplinger Publishing Co, 1970.
MLA (9th ed.) CitationHartcup, Guy. The Challenge of War: Britain's Scientific and Engineering Contributions to World War Two. Taplinger Publishing Co, 1970.
Warning: These citations may not always be 100% accurate.