1. Alaska Department of Transportation and Public Facilities (2007) Alaska guide for description and classification of peat and organic soils-classification of peat and organic soil (effective 3/31/07). Alaska Department of Transportation and Public Facilities, Juneau, pp 5–10
2. Andriesse JP (1974) The characteristics, agriculture potential and relamation problems of tropical lowland peats in south-east Asia. Departmentof Agriculture Research, Amsterdam, pp 63–70
3. Andriesse JP (1988) Nature and management of tropical peat soils, 1st edn. FAO, Rome
4. ASTM (1992) D4427: Standard classification of peat samples by laboratory testing. American Society for Testing and Materials, ASTM International, West Conshohocken
5. ASTM (2000) D5715 Standard test method for estimating the degree of humification of peat and other organic soils (visual/manual method). ASTM International, West Conshohocken