Cita APA (7th ed.)
Johnston, H. (2003). A bridge not attacked: Chemical warfare civilian research during World War II. World Scientific.
Cita Chicago (17th ed.)
Johnston, Harold. A Bridge Not Attacked: Chemical Warfare Civilian Research During World War II. River Edge, N.J.: World Scientific, 2003.
Cita MLA (9th ed.)
Johnston, Harold. A Bridge Not Attacked: Chemical Warfare Civilian Research During World War II. World Scientific, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.