APA-Zitierstil (7. Ausg.)

Bertelsen, F. (1972). A lower carboniferous microflora from the Ørslev no. 1 borehole, Island of Falster, Denmark. Reitzel.

Chicago-Zitierstil (17. Ausg.)

Bertelsen, Finn. A Lower Carboniferous Microflora from the Ørslev No. 1 Borehole, Island of Falster, Denmark. København: Reitzel, 1972.

MLA-Zitierstil (9. Ausg.)

Bertelsen, Finn. A Lower Carboniferous Microflora from the Ørslev No. 1 Borehole, Island of Falster, Denmark. Reitzel, 1972.