Ryan, Peter G., Lorien Pichegru, Vonica Perold, and Coleen L. Moloney. “Monitoring Marine Plastics – Will We Know If We Are Making a Difference?”. South African Journal of Science 116, no. 5/6 (May 27, 2020). Accessed July 22, 2024. https://sajs.co.za/article/view/7678.