University Press, 2006. • Blumberg, Herbert H., A. Paul Hare, M. Valerie Kent, and Martin F. Davies. Small group research: Basic issues. Peter Lang, 2009. • Blumberg, Herbert H., M. Valerie Kent, A. Paul Hare, and Martin F. Davies. Small group research: Implications for peace psychology and conflict resolution. Springer, 2012. References 2009 deaths 1923 births American sociologists 20th-century American male writers