APA引文

Trotsky, L. (1973). Lessons of Spain. s.n..

Chicago Style (17th ed.) Citation

Trotsky, Leon. Lessons of Spain. [S.I.: s.n., 1973.

MLA引文

Trotsky, Leon. Lessons of Spain. s.n., 1973.

警告：这些引文格式不一定是100％准确.