Dyfyniad APA

Case, E. C., & Bergsmark, D. R. (1932). College geography. J. Wiley and Sons.

Dyfyniad Arddull Chicago

Case, Earl Clark, and Daniel R. Bergsmark. College Geography. New York: J. Wiley and Sons, 1932.

Dyfyniad MLA

Case, Earl Clark, and Daniel R. Bergsmark. College Geography. J. Wiley and Sons, 1932.

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