Dyfyniad APA

WHO. (1990). Environmental health criteria; N.117: Methyl isobutyl ketone. Geneva: WHO.

Dyfyniad Arddull Chicago

WHO. Environmental Health Criteria; N.117: Methyl Isobutyl Ketone. Geneva: WHO, 1990.

Dyfyniad MLA

WHO. Environmental Health Criteria; N.117: Methyl Isobutyl Ketone. Geneva: WHO, 1990.

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