APA (7th ed.) Citation

Sansone, G. (1959). Orthogonal functions (Rev. English ed.). Interscience Publishers.

Chicago Style (17th ed.) Citation

Sansone, Giovanni. Orthogonal Functions. Rev. English ed. New York: Interscience Publishers, 1959.

MLA (9th ed.) Citation

Sansone, Giovanni. Orthogonal Functions. Rev. English ed. Interscience Publishers, 1959.