Publications
- (Indiana University Press, 1988)
- , 2nd edn. (Guilford Press, 1993)
- (University of Wisconsin Press, 1993; 2nd edn. with James Collier, Lawrence Erlbaum Associates, 2004)
- (Open University Press and University of Minnesota Press, 1997)
- (Open University Press, 2000)
- (University of Chicago Press, 2000)
- (Butterworth-Heinemann, 2002)
- (Icon and Columbia University Press, 2003)
- (Icon 2005)
- (Routledge, 2006)
- (Sage, 2006)
- (Acumen, 2007)
- (Polity, 2007)
- (Polity, 2007)
- (Icon, 2008)
- (Sage, 2009)
- (Acumen, 2010)
- (Palgrave Macmillan, 2011)
- (Palgrave Macmillan, 2012).