Cita APA (7a ed.)

Casali, A., Von Furth, A., Sierra, C., & Godo, L. (2007). A tourism recommender agent: From theory to practice.

Cita Chicago Style (17a ed.)

Casali, Ana, Armando Von Furth, Carles Sierra, y Lluís Godo. A Tourism Recommender Agent: From Theory to Practice. 2007.

Cita MLA (8a ed.)

Casali, Ana, et al. A Tourism Recommender Agent: From Theory to Practice. 2007.