United Nations Conference on Trade and Development. (2018). Commodities at a glance: Special issue on gum arabic. United Nations.
Chicago (17e ed.) BronvermeldingUnited Nations Conference on Trade and Development. Commodities at a Glance: Special Issue on Gum Arabic. New York: United Nations, 2018.
MLA (9e ed.) BronvermeldingUnited Nations Conference on Trade and Development. Commodities at a Glance: Special Issue on Gum Arabic. United Nations, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.