1. Organic carbon;Allison,1965
2. Extraction and radiocarbon dating of dispersed organic material from loess in the South Island of New Zealand;Bailey;N.Z. J. Sci.,1971
3. The presence of humic acids in radiocarbon-dated charcoal;Bailey,1971
4. The effect of alkaline pretreatment on the radiocarbon dates of several New Zealand charcoals;Bailey,1972
5. Humic-acid contamination of charcoals from Quarternary tephra deposits in New Zealand;Bailey,1975