APA (7th ed.) Citation

Steffensen, J. F. (1965). Interpolation (2.ed., repr.). Chelsea Publ.Comp.

Chicago Style (17th ed.) Citation

Steffensen, Johan Frederik. Interpolation. 2.ed., repr. New York: Chelsea Publ.Comp, 1965.

MLA (9th ed.) Citation

Steffensen, Johan Frederik. Interpolation. 2.ed., repr. Chelsea Publ.Comp, 1965.

Warning: These citations may not always be 100% accurate.