Singapore: Oxford University Press, 1990.

Oxford, Oxford University Press, 1990

New York-Oxford, Oxford University Press. 1990

Oxford, Oxford University Press.Clarendon Press. 1990

1990

Oxford University Press; Oxford New York: 1990

London/Oxford/New York, Natural History Museum Publications/Oxford University Press 1990

Berkeley-Los Angeles-Oxford, University of California Press 1990

New York, Oxford University Press 1990

Singapore [u.a.], Oxford University Press, 1990.

Oxford, Oxford University Press 1998

Oxford, Oxford University Press 1993.

Oxford , Oxford University Press , 1997

Oxford, Oxford University Press, 1999..

Oxford. Oxford University Press. 1995

Oxford. Oxford University Press. 1995