Cita APA (7th ed.)

Schaback, R., & Scherer, K. (1976). Approximation theory. Springer-Verlag.

Cita Chicago (17th ed.)

Schaback, R., i K. Scherer. Approximation Theory. Berlín: Springer-Verlag, 1976.

Cita MLA (9th ed.)

Schaback, R., i K. Scherer. Approximation Theory. Springer-Verlag, 1976.