Blum, H. (2022). The spy who knew too much: An ex-CIA officer's quest through a legacy of betrayal (First edition.). Harper, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBlum, Howard. The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal. First edition. New York, NY: Harper, an imprint of HarperCollinsPublishers, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBlum, Howard. The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal. First edition. Harper, an imprint of HarperCollinsPublishers, 2022.
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