Ryan, D. (2003). The United States and Europe in the twentieth century. London: Pearson Education.
Chicago Style (17th ed.) CitationRyan, David. The United States and Europe in the Twentieth Century. London: Pearson Education, 2003.
MLA (8th ed.) CitationRyan, David. The United States and Europe in the Twentieth Century. London: Pearson Education, 2003.
Warning: These citations may not always be 100% accurate.