APA (7 वां संस्करण) प्रशस्ति पत्र

Reich, H. (2016). What is gravity. MinuteEarth/MinutePhysics.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Reich, Henry. What Is Gravity. [Place of publication not identified]: MinuteEarth/MinutePhysics, 2016.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Reich, Henry. What Is Gravity. MinuteEarth/MinutePhysics, 2016.