Clarke, A.D., Thacker, J., Barber, R.F. and Lyford, P.B. (1996). Horticulture soils, economics and opportunities for the Far North: A resource management perspective. Report produced for Far North District Council.
DOC. (2007). Wild deer in Northland: Annual report – year 10. Department of Conservation Internal Report.
Esler, A. E.; Liefting, L. W. and Champion, P. D. (1993). Biological success and weediness of the noxious plants of New Zealand. Ministry of Agriculture and Fisheries, Wellington, New Zealand.
Everett, K.R. and Timudo-Torrevilla, O.E. (2006). Reducing Copper use in avocado orchards: results of laboratory and postharvest testing of alternative fungicides and biological products. New Zealand Avocado Grower's Association Annual Research Report Vol 6: 81 – 90.
Gabzdylova, B., Raffensperger, J. F. and Castka, P. (2007). Corporate Social Responsibility: Environmental Concern in New Zealand's Wine Industry. Paper presented to Australian and New Zealand Marketing Academy Conference 2007.
Guernsey, S., Pearson, A. and Manktelow, D. (2004). Inorganic agrichemicals: sustainable use in New Zealand horticultural industries. Research report commissioned by Marie Dawkins Management Ltd on behalf of the horticultural industry groups participating in the SFF project. HortResearch Client Report No. 13290.
Harmsworth, G. R. (1994) New Zealand Land Resource Inventory Land Use Capability Extended Legend of the Northland Region – 2nd Edition, DSIR, Land Resources, Palmerston North.
Harmsworth, G.R. (1996) Land Use Capability Classification of the Northland region. Landcare Research Science series No. 9.
MAF. (2007). Summary of risks from cadmium in agricultural soils: The Cadmium Working Group's Summary report one. Published by the Ministry of Agriculture and Fisheries.
NZWWA. (2003). Guidelines for the safe application of biosolids to land in New Zealand. New Zealand Water and Wastes Association, Wellington.
Ussher, G. (2004). Managing soils on beef farms in Northland. Final report prepared on behalf of Northland Beef Farming Group for Sustainable Farming Fund project 01/148.