(2006). World reference base for soil resources 2006: A framework for international classification, correlation and communication. Food and agriculture organization of the United Nations.
芝加哥风格引文World Reference Base for Soil Resources 2006: A Framework for International Classification, Correlation and Communication. Rome: Food and agriculture organization of the United Nations, 2006.
MLA引文World Reference Base for Soil Resources 2006: A Framework for International Classification, Correlation and Communication. Food and agriculture organization of the United Nations, 2006.
警告：这些引文格式不一定是100％准确.