Bell, N.L., R.J. Townsend, A.J. Popay, C.F. Mercer, and T.A. Jackson. 2011. “Black Beetle: Lessons from the past and Options for the Future”. NZGA: Research and Practice Series 15 (January):119-24. https://doi.org/10.33584/rps.15.2011.3193.