Dyfyniad APA

Kiver, E. P., & Harris, D. V. (1999). Geology of U.S. parklands (5th ed.). J. Wiley.

Dyfyniad Arddull Chicago

Kiver, Eugene P., and David V. Harris. Geology of U.S. Parklands. 5th ed. New York: J. Wiley, 1999.

Dyfyniad MLA

Kiver, Eugene P., and David V. Harris. Geology of U.S. Parklands. 5th ed. J. Wiley, 1999.

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