APA-ийн эшлэл(7 дахь хэвлэлт)

Icke, V. (2014). Gravity does not exist: A puzzle for the 21st century. Amsterdam University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Icke, Vincent. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam, Netherlands: Amsterdam University Press, 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Icke, Vincent. Gravity Does Not Exist: A Puzzle for the 21st Century. Amsterdam University Press, 2014.