"Status of Chemistry on the African Continent" Chemistry International -- Newsmagazine for IUPAC, vol. 21, no. 1, 1999, pp. 2-3. https://doi.org/10.1515/ci.1999.21.1.2
(1999). Status of Chemistry on the African Continent. Chemistry International -- Newsmagazine for IUPAC, 21(1), 2-3. https://doi.org/10.1515/ci.1999.21.1.2
(1999) Status of Chemistry on the African Continent. Chemistry International -- Newsmagazine for IUPAC, Vol. 21 (Issue 1), pp. 2-3. https://doi.org/10.1515/ci.1999.21.1.2
"Status of Chemistry on the African Continent" Chemistry International -- Newsmagazine for IUPAC 21, no. 1 (1999): 2-3. https://doi.org/10.1515/ci.1999.21.1.2
Status of Chemistry on the African Continent. Chemistry International -- Newsmagazine for IUPAC. 1999;21(1): 2-3. https://doi.org/10.1515/ci.1999.21.1.2