Gaya APA

Polmar, N., Gresham, J, D. (2006). Defcon-2: Standing on the brink of nuclear war during the Cuban missile crisis (1). New Jersey: John Wiley & Sons.

Gaya MLA

Polmar, Norman., Gresham, John, D.. "Defcon-2: Standing on the brink of nuclear war during the Cuban missile crisis". 1 New Jersey: John Wiley & Sons, 2006. Text.