Leader, W., Brett, R., Brooks, M., Craig, I., Toit, R., Emslie, R., Knight, M., Stanley, P., & Stockill, C. (1997). A scheme for differentiating and defining the different situations under which live rhinos are conserved. Pachyderm, 23(1), 24–28. Retrieved from https://pachydermjournal.org/index.php/pachyderm/article/view/889