Dyfyniad APA

FRIEDMAN, G. M., & Sanders, J. E. (1978). Principles of sedimentology. John Wiley.

Dyfyniad Arddull Chicago

FRIEDMAN, Gerald M., and John E. Sanders. Principles of Sedimentology. New York: John Wiley, 1978.

Dyfyniad MLA

FRIEDMAN, Gerald M., and John E. Sanders. Principles of Sedimentology. John Wiley, 1978.

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