Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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