APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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