Dyfyniad APA

Guyll, M., Crowley, D. M., & Spoth, R. Economic analysis of methamphetamine prevention effects and employer costs.

Dyfyniad Arddull Chicago

Guyll, Max., D Max Crowley, và Richard Spoth. Economic Analysis of Methamphetamine Prevention Effects and Employer Costs.

Dyfyniad MLA

Guyll, Max., D Max Crowley, và Richard Spoth. Economic Analysis of Methamphetamine Prevention Effects and Employer Costs.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.