APA (7th ed.) Citation

SpringerLink (Online service), Nocedal, J., & Wright, S. J. (1999). Numerical Optimization. Springer New York.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Jorge Nocedal, and Stephen J. Wright. Numerical Optimization. New York, NY: Springer New York, 1999.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Numerical Optimization. Springer New York, 1999.