Clarke, L., & Jenkyns, H. (1999). New oxygen isotope evidence for long-term Cretaceous climatic change in the Southern Hemisphere.
Chicago-viite (17. p.)Clarke, L., ja H. Jenkyns. New Oxygen Isotope Evidence for Long-term Cretaceous Climatic Change in the Southern Hemisphere. 1999.
MLA-viite (9. p.)Clarke, L., ja H. Jenkyns. New Oxygen Isotope Evidence for Long-term Cretaceous Climatic Change in the Southern Hemisphere. 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.