National Water and Soil Conservation Authority (N.Z.), New Zealand. Water and Soil Directorate, Roper, D. S., & Williams, B. L. (1987). Coastal outfalls: Proceedings of a workshop, Christchurch, 4 December 1985. Published for the National Water and Soil Conservation Authority by the Water and Soil Directorate, Ministry of Works and Development.

National Water and Soil Conservation Authority (N.Z.), New Zealand. Water and Soil Directorate, D. S. Roper, and B. L. Williams. Coastal Outfalls: Proceedings of a Workshop, Christchurch, 4 December 1985. Wellington, N.Z.: Published for the National Water and Soil Conservation Authority by the Water and Soil Directorate, Ministry of Works and Development, 1987.

National Water and Soil Conservation Authority (N.Z.), et al. Coastal Outfalls: Proceedings of a Workshop, Christchurch, 4 December 1985. Published for the National Water and Soil Conservation Authority by the Water and Soil Directorate, Ministry of Works and Development, 1987.