BRUUN, G. The world in the Twentieth century. D. C. Heath And Company.
Chicago Style (17th ed.) CitationBRUUN, Geoffrey. The World in the Twentieth Century. D. C. Heath And Company.
MLA (8th ed.) CitationBRUUN, Geoffrey. The World in the Twentieth Century. D. C. Heath And Company.
Warning: These citations may not always be 100% accurate.