APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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