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New Zealand | |
- Manawatu-Whanganui Region
| New Zealand Geological Survey (1908) C.-9, (Fourth Annual Report (New Series) of the), Presented to both Houses of the General Assembly, The Retaruke Coalfield, 9-14, New Zealand Government. |
| Hay, R.F. (1965) Coal Measures in the Upper Retaruke Valley King Country, New Zealand Journal of Geology and Geophysics, 8:4, 1225-1227. |
| Hood, S.D., Nelson, C.S., Kamp, P.J.J. (2002) Petrogenesis of the Tikorangi Formation fracture reservoir Waihapa-Ngaere field Taranaki Basin, 2002 New Zealand Petroleum Conference Proceedings, 24-27 February 2002. |