APA-viite (7. p.)

Olson, S. F. (1998). Open horizons (1st University of Minnesota ed.). University of Minnesota Press.

Chicago-viite (17. p.)

Olson, Sigurd F. Open Horizons. 1st University of Minnesota ed. Minneapolis: University of Minnesota Press, 1998.

MLA-viite (9. p.)

Olson, Sigurd F. Open Horizons. 1st University of Minnesota ed. University of Minnesota Press, 1998.