APA (7th ed.) Citation

Hitler, A., Genoud, F., Stevens, R., & Trevor-Roper, H. R. (1961). The testament of Adolf Hitler: The Hitler-Bormann documents February-April 1945. Cassell.

Chicago Style (17th ed.) Citation

Hitler, Adolf, Francois Genoud, R.H Stevens, and Hugh R. Trevor-Roper. The Testament of Adolf Hitler: The Hitler-Bormann Documents February-April 1945. London: Cassell, 1961.

MLA (8th ed.) Citation

Hitler, Adolf, et al. The Testament of Adolf Hitler: The Hitler-Bormann Documents February-April 1945. Cassell, 1961.