APA (7th ed.) Citation

Álvarez, D., & Graham, R. A. (1997). Nothing sacred: Nazi espionage against the Vatican, 1939-1945. Frank Cass.

Chicago Style (17th ed.) Citation

Álvarez, David, and Robert A. Graham. Nothing Sacred: Nazi Espionage Against the Vatican, 1939-1945. London [etc.]: Frank Cass, 1997.

MLA (9th ed.) Citation

Álvarez, David, and Robert A. Graham. Nothing Sacred: Nazi Espionage Against the Vatican, 1939-1945. Frank Cass, 1997.

Warning: These citations may not always be 100% accurate.