Sood Vikram. (2018). Unending Game: Former R & A W Chiefs Insights Into Espionage. Penguin.
Čikaški stil citiranja (17. izdanje)Sood Vikram. Unending Game: Former R & A W Chiefs Insights Into Espionage. Penguin, 2018.
MLA način citiranja (9. izdanje)Sood Vikram. Unending Game: Former R & A W Chiefs Insights Into Espionage. Penguin, 2018.
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