Cita APA (7a ed.)

EMA Partners International. (2011). The book of search excellence. Status/EMA Partners Spain.

Cita Chicago Style (17a ed.)

EMA Partners International. The Book of Search Excellence. Barcelona: Status/EMA Partners Spain, 2011.

Cita MLA (9a ed.)

EMA Partners International. The Book of Search Excellence. Status/EMA Partners Spain, 2011.