APA (7th ed.) Citation

Naciones Unidas. Economic Comission for Europe, Génova. (1993). Directory of chemical producers and products: Chemical enterprises in Central and Eastern Europe. Naciones Unidas.

Chicago Style (17th ed.) Citation

Naciones Unidas. Economic Comission for Europe, Génova. Directory of Chemical Producers and Products: Chemical Enterprises in Central and Eastern Europe. Nueva York: Naciones Unidas, 1993.

MLA (9th ed.) Citation

Naciones Unidas. Economic Comission for Europe, Génova. Directory of Chemical Producers and Products: Chemical Enterprises in Central and Eastern Europe. Naciones Unidas, 1993.