Dyfyniad APA

Thulin, B. (1987). Diatoms and paleoenvironment at Ottenby, southern Öland, southeastern Sweden. Societas Upsaliensis pro Geologia Quaternaria.

Dyfyniad Arddull Chicago

Thulin, Barbara. Diatoms and Paleoenvironment at Ottenby, Southern Öland, Southeastern Sweden. Uppsala: Societas Upsaliensis pro Geologia Quaternaria, 1987.

Dyfyniad MLA

Thulin, Barbara. Diatoms and Paleoenvironment at Ottenby, Southern Öland, Southeastern Sweden. Societas Upsaliensis pro Geologia Quaternaria, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.