Cita APA

Sigmund, P. E. (1974). Allende in retrospect. Problems of communism. - International Communication Agency.

Citación estilo Chicago

Sigmund, Paul E. "Allende in Retrospect." Problems of Communism. - International Communication Agency 1974.

Cita MLA

Sigmund, Paul E. "Allende in Retrospect." Problems of Communism. - International Communication Agency, 1974.