Cita APA

Koestler, A. 1., & Koestler, A. 1. (1969). The invisible writing: The second volume of an autobiography: 1932-40. New York: Macmillan.

Citación estilo Chicago

Koestler, Arthur 1905-1983, y Arthur 1905-1983 Koestler. The Invisible Writing: The Second Volume of an Autobiography: 1932-40. New York: Macmillan, 1969.

Cita MLA

Koestler, Arthur 1905-1983, y Arthur 1905-1983 Koestler. The Invisible Writing: The Second Volume of an Autobiography: 1932-40. New York: Macmillan, 1969.