TRUTAN, H. (1977). A practical guide to statistical maps and diagrams. Heinemann Educational Books.
芝加哥风格引文TRUTAN, H.C. A Practical Guide to Statistical Maps and Diagrams. London: Heinemann Educational Books, 1977.
MLA引文TRUTAN, H.C. A Practical Guide to Statistical Maps and Diagrams. Heinemann Educational Books, 1977.
警告：这些引文格式不一定是100％准确.