Gaya APA

Snyder, C, A., Snyder, C, A. (2012). Contemporary security and strategy (3rd ed.). enk: Palgrave Macmillan.

Gaya MLA

Snyder, Craig, A.,., Snyder, Craig, A.. "Contemporary security and strategy". 3rd ed. enk: Palgrave Macmillan, 2012. .