Cita APA

Tetens, T. H., Ludwig, E., & Fluegge, R. (1944). Know your enemy. Society for the prevention of World War III.

Citación estilo Chicago

Tetens, T. H., Emil Ludwig, y Rudolph Fluegge. Know Your Enemy. New York: Society for the prevention of World War III, 1944.

Cita MLA

Tetens, T. H., et al. Know Your Enemy. Society for the prevention of World War III, 1944.