1. The drop cone method for the determining of Atterberg limits;Allbrook;N.Z.J. Sci.,1980
2. Some physical properties of allophane soils from the North Island, New Zealand;Allbrook;N.Z.J. Sci.,1983
3. Soils of Papua New Guinea;Bleeker,1983
4. A Time of Darkness: Local Legends and Volcanic Reality in Papua New Guinea;Blong,1982
5. A climosequence of soils of late Quaternary volcanic ash in the Highlands of Papua New Guinea;Chartres;Geoderma,1984