Ryan, J. W., & Stouffer, S. A. (2013). Samuel Stouffer and the GI survey: Sociologists and soldiers during the Second World War (First edition.). University of Tennessee Press.
Lua i Stíl Chicago (17ú heag.)Ryan, Joseph W., agus Samuel A. Stouffer. Samuel Stouffer and the GI Survey: Sociologists and Soldiers During the Second World War. First edition. Knoxville: University of Tennessee Press, 2013.
Lua MLA (9ú heag.)Ryan, Joseph W., agus Samuel A. Stouffer. Samuel Stouffer and the GI Survey: Sociologists and Soldiers During the Second World War. First edition. University of Tennessee Press, 2013.
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