Παραπομπή σε μορφή APA (7η εκδ.)

McElwain, J., Wagner, P., & Hesselbo, S. (2009). Fossil plant relative abundances indicate sudden loss of Late Triassic biodiversity in East Greenland.

Παραπομπή σε μορφή Chicago (17η εκδ.)

McElwain, J., P. Wagner, και S. Hesselbo. Fossil Plant Relative Abundances Indicate Sudden Loss of Late Triassic Biodiversity in East Greenland. 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

McElwain, J., et al. Fossil Plant Relative Abundances Indicate Sudden Loss of Late Triassic Biodiversity in East Greenland. 2009.