APA

Kannisto V., Lauritsen J., Thatcher A. R. & Vaupel J. W.Reductions in mortality at advanced ages : Several decades of evidence from 27 countries. : .

Chicago

Kannisto V, Lauritsen J, Thatcher A R and Vaupel J W.Reductions in mortality at advanced ages : Several decades of evidence from 27 countries. : .

Harvard

Kannisto V., Lauritsen J., Thatcher A. R. and Vaupel J. W.Reductions in mortality at advanced ages : Several decades of evidence from 27 countries. : .

MLA

Kannisto V, Lauritsen J, Thatcher A R and Vaupel J W.: . .