Dyfyniad APA
BIGLAN, A., & ET AL. (1995). MOBILISING POSITIVE REINFORCEMENT TO REDUCE YOUTY ACCESS TO TOBACCO.
Dyfyniad Arddull Chicago
BIGLAN, A., and ET AL. MOBILISING POSITIVE REINFORCEMENT TO REDUCE YOUTY ACCESS TO TOBACCO. 1995.
Dyfyniad MLA
BIGLAN, A., and ET AL. MOBILISING POSITIVE REINFORCEMENT TO REDUCE YOUTY ACCESS TO TOBACCO. 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.