Cita APA (7a ed.)

Paviolo, M., Pinet, A., & de Kempny, R. An Improved Technique for Investigation in Urine of Ecgonine, a Cocaine Metabolite.

Cita Chicago Style (17a ed.)

Paviolo, M.L, A.M Pinet, y R.S.G de Kempny. An Improved Technique for Investigation in Urine of Ecgonine, a Cocaine Metabolite.

Cita MLA (8a ed.)

Paviolo, M.L, et al. An Improved Technique for Investigation in Urine of Ecgonine, a Cocaine Metabolite.