Dyfyniad APA

WHO. (1992). Environmental health criteria; N.131: Diethylhexyl phthalate. Geneva: WHO.

Dyfyniad Arddull Chicago

WHO. Environmental Health Criteria; N.131: Diethylhexyl Phthalate. Geneva: WHO, 1992.

Dyfyniad MLA

WHO. Environmental Health Criteria; N.131: Diethylhexyl Phthalate. Geneva: WHO, 1992.

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