Henriksson, A. S. (1994). Late Cretaceous calcareous nannoplankton and the extinctions at the Cretaceous-Tertiary boundary. ACTA Universitatis Upsaliensis.
Lua i Stíl Chicago (17ú heag.)Henriksson, Anders S. Late Cretaceous Calcareous Nannoplankton and the Extinctions at the Cretaceous-Tertiary Boundary. Uppsala: ACTA Universitatis Upsaliensis, 1994.
Lua MLA (8ú heag.)Henriksson, Anders S. Late Cretaceous Calcareous Nannoplankton and the Extinctions at the Cretaceous-Tertiary Boundary. ACTA Universitatis Upsaliensis, 1994.
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