New York, Oxford University Press 1984.

New York.: Oxford University Press. 1954

1981

New York, NY, U.S.A., Oxford University Press, Incorporated

Clarendon Press u. New York, Oxford University Press 1984.

New York, Toronto: Oxford University Press

London, New York, Toronto: Oxford University Press

London, New York, Toronto: Oxford University Press

London, New York, Toronto : Oxford University Press

London, New York, Toronto: Oxford University Press

London, New York, Toronto: Oxford University Press

New York, Oxford University Press 1979

1990

Oxford Universiry Press, New York Oxford

1982

Oxford University Press, New York/Toronto

New York; Oxford University Press, UNICEF; 1989

London, New York, Torono: Oxford University Press for the University of Hull