Παραπομπή σε μορφή APA (7η εκδ.)

Sheridan, D. (1972). Upper old red sandstone and Lower Carboniferous of the Slieve Beagh syncline: And its setting in the northwest Carboniferous basin, Ireland. Geological Survey of Ireland.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sheridan, D. Upper Old Red Sandstone and Lower Carboniferous of the Slieve Beagh Syncline: And Its Setting in the Northwest Carboniferous Basin, Ireland. [Dublin]: Geological Survey of Ireland, 1972.

Παραπομπή σε μορφή MLA (8th εκδ.)

Sheridan, D. Upper Old Red Sandstone and Lower Carboniferous of the Slieve Beagh Syncline: And Its Setting in the Northwest Carboniferous Basin, Ireland. Geological Survey of Ireland, 1972.