APA Citation

Steffensen, J. F. n. 1., & Steffensen, J. F. n. 1. (1950). Interpolation (2. edition.). New York, New York: Chelsea.

Chicago Style Citation

Steffensen, Johan Frederik n. 1873, and Johan Frederik n. 1873 Steffensen. Interpolation. 2. edition. New York, New York: Chelsea, 1950.

MLA Citation

Steffensen, Johan Frederik n. 1873, and Johan Frederik n. 1873 Steffensen. Interpolation. 2. edition. New York, New York: Chelsea, 1950.

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