Citazione Stile APA (7a Edizione)

Pyle, D., van Andel, T., Paschos, P., & van den Bogaard, P. (1998). An exceptionally thick Middle Pleistocene tephra layer from Epirus, Greece.

Citazione stile Chigago Style (17a edizione)

Pyle, D., T. van Andel, P. Paschos, e P. van den Bogaard. An Exceptionally Thick Middle Pleistocene Tephra Layer from Epirus, Greece. 1998.

Citatione MLA (9a ed.)

Pyle, D., et al. An Exceptionally Thick Middle Pleistocene Tephra Layer from Epirus, Greece. 1998.