Dyfyniad APA

Gubbins, D. (1990). Seismology and plate tectonics. Cambridge University Press.

Dyfyniad Arddull Chicago

Gubbins, David. Seismology and Plate Tectonics. London: Cambridge University Press, 1990.

Dyfyniad MLA

Gubbins, David. Seismology and Plate Tectonics. Cambridge University Press, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.