Thulin, B. (1987). Diatoms and paleoenvironment at Ottenby, southern Öland, southeastern Sweden. Societas Upsaliensis pro Geologia Quaternaria.
Cita Chicago Style (17a ed.)Thulin, Barbara. Diatoms and Paleoenvironment at Ottenby, Southern Öland, Southeastern Sweden. Uppsala: Societas Upsaliensis pro Geologia Quaternaria, 1987.
Cita MLA (8a ed.)Thulin, Barbara. Diatoms and Paleoenvironment at Ottenby, Southern Öland, Southeastern Sweden. Societas Upsaliensis pro Geologia Quaternaria, 1987.
Precaución: Estas citas no son 100% exactas.