APA način citiranja

Proti, O., & Figueroa, H. (2011). On the classification of constrained extrema.

Čikaški stil citiranja

Proti, Orieta, i Héctor Figueroa. On the Classification of Constrained Extrema. 2011.

MLA način citiranja

Proti, Orieta, i Héctor Figueroa. On the Classification of Constrained Extrema. 2011.