APA (7th ed.) Citation

Chui, C. K., Schumaker, L. L., & Utreras, F. I. (1987). Topics in multivariate approximation. Academic Press.

Chicago Style (17th ed.) Citation

Chui, C. K., Larry L. Schumaker, and Florencio I. Utreras. Topics in Multivariate Approximation. Boston: Academic Press, 1987.

MLA (9th ed.) Citation

Chui, C. K., et al. Topics in Multivariate Approximation. Academic Press, 1987.