Παραπομπή σε μορφή APA (7η εκδ.)

Forchheimer, S. (1972). Scanning electron microscope studies of Cretaceous coccoliths from the Köpingsberg Borehole No. 1, SE Sweden. [Sveriges geologiska undersökning].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Forchheimer, Sylvia. Scanning Electron Microscope Studies of Cretaceous Coccoliths from the Köpingsberg Borehole No. 1, SE Sweden. Stockholm: [Sveriges geologiska undersökning], 1972.

Παραπομπή σε μορφή MLA (8th εκδ.)

Forchheimer, Sylvia. Scanning Electron Microscope Studies of Cretaceous Coccoliths from the Köpingsberg Borehole No. 1, SE Sweden. [Sveriges geologiska undersökning], 1972.