Cita APA (7th ed.)
BARRIO, G., & ET AL. (1993). HOUSEHOLD SURVEYS ON DRUG USE: CURRENT SITUATION AND PROSPECTS. EN: HEALTH RELATED DATA AND EPIDEMIOLOGY IN THE EUROPEAN COMMUNITY. COMUNIDAD EUROPEA.
Cita Chicago (17th ed.)
BARRIO, G., i ET AL. HOUSEHOLD SURVEYS ON DRUG USE: CURRENT SITUATION AND PROSPECTS. EN: HEALTH RELATED DATA AND EPIDEMIOLOGY IN THE EUROPEAN COMMUNITY. BRUSELAS: COMUNIDAD EUROPEA, 1993.
Cita MLA (9th ed.)
BARRIO, G., i ET AL. HOUSEHOLD SURVEYS ON DRUG USE: CURRENT SITUATION AND PROSPECTS. EN: HEALTH RELATED DATA AND EPIDEMIOLOGY IN THE EUROPEAN COMMUNITY. COMUNIDAD EUROPEA, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.