Cita APA (7a ed.)

Icke, V., & Icke, V. (2020). Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam University Press.

Cita Chicago Style (17a ed.)

Icke, Vincent, y Vincent Icke. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam: Amsterdam University Press, 2020.

Cita MLA (8a ed.)

Icke, Vincent, y Vincent Icke. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam University Press, 2020.