【作者(必填)】Vilfredo Pareto

【文题(必填)】The New Theories of Economics

【年份(必填)】Journal of Political Economy   >   Vol. 5, No. 4, Sep., 1897

【全文链接或数据库名称(选填)】http://www.jstor.org/stable/1821012

【作者(必填)】Zipf G.K

【文题(必填)】Human Behavior and the Principal of Least Effort

【年份(必填)】 Addison-Wesley, Cambridge, MA, pp.498-500.

【全文链接或数据库名称(选填)】