Biosynthesis of porphyrins and chlorophylls.

MLA

Gibson, K. D., et al. “Biosynthesis of Porphyrins and Chlorophylls.” Nature, vol. 192, Oct. 1961, pp. 204–08. EBSCOhost, https://doi.org/10.1038/192204a0.

APA

Gibson, K. D., Matthew, M., Neuberger, A., & Tait, G. H. (1961). Biosynthesis of porphyrins and chlorophylls. Nature, 192, 204–208. https://doi.org/10.1038/192204a0

Chicago

Gibson, K D, M Matthew, A Neuberger, and G H Tait. 1961. “Biosynthesis of Porphyrins and Chlorophylls.” Nature 192 (October): 204–8. doi:10.1038/192204a0.