Dyfyniad APA

Yeats, R. S., & Sieh Kerry Allen, C. R. (1997). Geology of earth quakes. University Press.

Dyfyniad Arddull Chicago

Yeats, Robert S., and Clarence R. Sieh Kerry Allen. Geology of Earth Quakes. Oxford: University Press, 1997.

Dyfyniad MLA

Yeats, Robert S., and Clarence R. Sieh Kerry Allen. Geology of Earth Quakes. University Press, 1997.

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