Cita APA (7th ed.)
BARNARD, M., & ET AL. LEVELS OF DRUG USE AMONG A SAMPLE OF SCOTTISH SCHOOLCHILDREN.
Cita Chicago (17th ed.)
BARNARD, M., i ET AL. LEVELS OF DRUG USE AMONG A SAMPLE OF SCOTTISH SCHOOLCHILDREN.
Cita MLA (9th ed.)
BARNARD, M., i ET AL. LEVELS OF DRUG USE AMONG A SAMPLE OF SCOTTISH SCHOOLCHILDREN.
Atenció: Aquestes cites poden no estar 100% correctes.