Citazione Stile APA (7a Edizione)
Icke, V. (2014). Gravity does not exist: A puzzle for the 21st century. Amsterdam University Press.
Citazione stile Chigago Style (17a edizione)
Icke, Vincent. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam, Netherlands: Amsterdam University Press, 2014.
Citatione MLA (9a ed.)
Icke, Vincent. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam University Press, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.