"Permanent Access to Scientific Information in Southern Africa" Chemistry International -- Newsmagazine for IUPAC, vol. 28, no. 4, 2006, pp. 19-19. https://doi.org/10.1515/ci.2006.28.4.19a
(2006). Permanent Access to Scientific Information in Southern Africa. Chemistry International -- Newsmagazine for IUPAC, 28(4), 19-19. https://doi.org/10.1515/ci.2006.28.4.19a
(2006) Permanent Access to Scientific Information in Southern Africa. Chemistry International -- Newsmagazine for IUPAC, Vol. 28 (Issue 4), pp. 19-19. https://doi.org/10.1515/ci.2006.28.4.19a
"Permanent Access to Scientific Information in Southern Africa" Chemistry International -- Newsmagazine for IUPAC 28, no. 4 (2006): 19-19. https://doi.org/10.1515/ci.2006.28.4.19a
Permanent Access to Scientific Information in Southern Africa. Chemistry International -- Newsmagazine for IUPAC. 2006;28(4): 19-19. https://doi.org/10.1515/ci.2006.28.4.19a