Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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