Παραπομπή σε μορφή APA (7η εκδ.)

(2000). Isotopic evidence for temperature variation during the early Cretaceous (late Ryazanian–mid-Hauterivian).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Isotopic Evidence for Temperature Variation During the Early Cretaceous (late Ryazanian–mid-Hauterivian). 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Isotopic Evidence for Temperature Variation During the Early Cretaceous (late Ryazanian–mid-Hauterivian). 2000.