APA način citiranja

Collatz, L., & Wetterling, W. W. E. (1975). Optimization problems. Springer-Verlag.

Čikaški stil citiranja

Collatz, L., i Wolfgang W. E. Wetterling. Optimization Problems. New York: Springer-Verlag, 1975.

MLA način citiranja

Collatz, L., i Wolfgang W. E. Wetterling. Optimization Problems. Springer-Verlag, 1975.