, No. 6117-6124
Nature : International Weekly Journal of Science London : Macmillan Magazines Ltd, May, 1987 P. 1-736 : V. 327
(1987). Nature. London: Macmillan Magazines Ltd.
1987. Nature. London: Macmillan Magazines Ltd.
Nature. London: Macmillan Magazines Ltd. 1987.