APA način citiranja (7. izdanje)

Dignum, F., & Sierra, C. Agent mediated electronic commerce: The european agentlink perspective. Springer.

Čikaški stil citiranja (17. izdanje)

Dignum, Frank, i Carles Sierra. Agent Mediated Electronic Commerce: The European Agentlink Perspective. Berlin [etc.]: Springer.

MLA način citiranja (8. izdanje)

Dignum, Frank, i Carles Sierra. Agent Mediated Electronic Commerce: The European Agentlink Perspective. Springer.