Dyfyniad APA

Drugs: Education, prevention & policy. [Abingdon, Oxfordshire]: Carfax International Publishers.

Dyfyniad Arddull Chicago

Drugs: Education, Prevention & Policy. [Abingdon, Oxfordshire]: Carfax International Publishers.

Dyfyniad MLA

Drugs: Education, Prevention & Policy. [Abingdon, Oxfordshire]: Carfax International Publishers.

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