APA引文

Eckstein, H. (1961). A theory of stable democracy. s. n.

芝加哥风格引文

Eckstein, Harry. A Theory of Stable Democracy. [Princeton, N. J.]: s. n, 1961.

MLA引文

Eckstein, Harry. A Theory of Stable Democracy. s. n, 1961.

警告：这些引文格式不一定是100％准确.