1. Petrography of the Samoan Islands
2. Metson, A. J. The long-term potassium-supplying power of New Zealand soils. Transactions of the 9th International Congress of Soil Science. Vol. 2, pp.621–629.
3. Metson, A. J., Arbuckle, R. H. and Saunders, M. L. The potassium-supplying power of New Zealand soils as determined by a modified normal-nitric-acid method. Transactions of the 6th International Congress of Soil Science. Vol. B, pp.619–627.
4. New Zealand Soil Bureau. 1968. Soils of New Zealand. Part 3.N.Z. Soil Bureau Bulletin, 26(3)