Cita APA (7th ed.)
FESTINGER, D., & ET AL. DO RESEARCH PAYMENTS PRCIPITATE DRUG USE OR COERCE PARTICIPATION?
Cita Chicago (17th ed.)
FESTINGER, D.S, i ET AL. DO RESEARCH PAYMENTS PRCIPITATE DRUG USE OR COERCE PARTICIPATION?
Cita MLA (9th ed.)
FESTINGER, D.S, i ET AL. DO RESEARCH PAYMENTS PRCIPITATE DRUG USE OR COERCE PARTICIPATION?
Atenció: Aquestes cites poden no estar 100% correctes.