Pheiffer, W., Pieters, R., Quinn, L. and Smit, N. (2014) “Polycyclic aromatic hydrocarbons (PAHs) in the aquatic ecosystems of Soweto and Lenasia”, Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, 33(1), p. 1 bladsy. doi: 10.4102/satnt.v33i1.1204.