Cita APA (7th ed.)
ENSP. (1999). 1998 DIRECTORY. FIRST EDITION. ANNUAIRE. PREMIERE EDITION. EUROPEAN NETWORK FOR SMOKING PREVENTION.
Cita Chicago (17th ed.)
ENSP. 1998 DIRECTORY. FIRST EDITION. ANNUAIRE. PREMIERE EDITION. BRUSELAS: EUROPEAN NETWORK FOR SMOKING PREVENTION, 1999.
Cita MLA (9th ed.)
ENSP. 1998 DIRECTORY. FIRST EDITION. ANNUAIRE. PREMIERE EDITION. EUROPEAN NETWORK FOR SMOKING PREVENTION, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.