Littlefield, D. (2008). Metric handbook: Planning and design data (3rd ed.). Elsevier.
芝加哥风格引文Littlefield, David. Metric Handbook: Planning and Design Data. 3rd ed. Amsterdam: Elsevier, 2008.
MLA引文Littlefield, David. Metric Handbook: Planning and Design Data. 3rd ed. Elsevier, 2008.
警告：这些引文格式不一定是100％准确.