Dyfyniad APA
Borchert, J. R., & Michaelsen, K. (1959). Minnesota's changing geography ([Teacher's ed.].). University of Minnesota Press.
Dyfyniad Arddull Chicago
Borchert, John R., and Katherine Michaelsen. Minnesota's Changing Geography. [Teacher's ed.]. Minneapolis: University of Minnesota Press, 1959.
Dyfyniad MLA
Borchert, John R., and Katherine Michaelsen. Minnesota's Changing Geography. [Teacher's ed.]. University of Minnesota Press, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.