APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Steffensen, Johann F. Interpolation. 2.ed.repr. New York, NY: Chelsea Publ. Co, 1965.

MLA (9th ed.) Citation

Steffensen, Johann F. Interpolation. 2.ed.repr. Chelsea Publ. Co, 1965.