Cambridge (MA) - London, Harvard University Press 1980.

Cambridge [MA]-London, Harvard University Press. 1997

Cambridge [MA]-London, Harvard University Press. 1994

Cambridge [MA]-London, Harvard University Press. 1994

Cambridge [MA]-London, Harvard University Press. 1998

Cambridge and London: Harvard University Press

Cambridge University Press, Cambridge, London a.o.

Cambridge University Press, Cambridge , London a.o.

William Heinemann Ltd; Cambridge, London: Harvard University Press

Cambridge, Mass.; London, Harvard University Press

1988

Cambridge MA/London, Harvard University Press/William Heinemann

1988

Cambridge MA/London, Harvard University Press/William Heinemann

Cambridge, Mass.: Harvard University Press; London: Heinemann

1991

Cambridge, MA/London : Harvard University Press

1997

Cambridge, MA/London : Harvard University Press