Dyfyniad APA

Teggart, F. J., & Bock, K. (1977). Theory and processes of history (Second pbk. edition.). University of California Press.

Dyfyniad Arddull Chicago

Teggart, Frederick J., and Kenneth Bock. Theory and Processes of History. Second pbk. edition. Berkeley: University of California Press, 1977.

Dyfyniad MLA

Teggart, Frederick J., and Kenneth Bock. Theory and Processes of History. Second pbk. edition. University of California Press, 1977.

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