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JSTOR, 1988

Novello & Company, Ltd., 1988

Oxford University Press, 1989

Oxford University Press, 1988

Oxford University Press (OUP), 1989

JSTOR, 1987

Oxford University Press, 1987

Oxford University Press (OUP), 1987

Novello & Company, Ltd., 1985

JSTOR, 1985

Oxford University Press, 1995

Cambridge University Press (CUP), 1985

Oxford University Press (OUP), 1975

Oxford University Press, 1975

Oxford University Press (OUP), 2002

JSTOR, 1992

JSTOR, 1991

Ovid Technologies (Wolters Kluwer Health), 2017