APA (7 वां संस्करण) प्रशस्ति पत्र

Brockman, J. (2014). What Should We Be Worried About?: Real Scenarios that Keep Scientists up at Night (1st.). Harper.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Brockman, John. What Should We Be Worried About?: Real Scenarios That Keep Scientists Up at Night. 1st. London: Harper, 2014.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Brockman, John. What Should We Be Worried About?: Real Scenarios That Keep Scientists Up at Night. 1st. Harper, 2014.