Dyfyniad APA

OMS. (1987). Bibliography on smoking and health. Genève: OMS.

Dyfyniad Arddull Chicago

OMS. Bibliography On Smoking and Health. Genève: OMS, 1987.

Dyfyniad MLA

OMS. Bibliography On Smoking and Health. Genève: OMS, 1987.

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