Dyfyniad APA

Research on Addiction | Drug Control Headquarters, Research and Education Office. Cambridge University Press.

Dyfyniad Arddull Chicago

Research on Addiction | Drug Control Headquarters, Research and Education Office. Cambridge University Press.

Dyfyniad MLA

Research on Addiction | Drug Control Headquarters, Research and Education Office. Cambridge University Press.

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