Basingstoke [u.a.]: Macmillan, 1993

Basingstoke [u.a.]: Macmillan, 1988

JSTOR, 1996

Oxford University Press (OUP), 1988

JSTOR, 1985

Oxford University Press (OUP), 1983

Oxford University Press (OUP), 1985

Oxford University Press (OUP), 1981

Oxford University Press (OUP), 1981

Oxford University Press (OUP), 1982

Oxford University Press (OUP), 1982

JSTOR, 1979

Cambridge University Press (CUP), 1976

Cambridge University Press (CUP), 1974

Oxford University Press (OUP), 1972

Cambridge University Press (CUP), 1971

Oxford University Press (OUP), 1968

Cambridge University Press (CUP), 1970

Oxford University Press (OUP), 1967

JSTOR, 1987