APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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