Cita APA (7a ed.)

Rovelli, C. (2008). Loop quantum gravity.

Cita Chicago Style (17a ed.)

Rovelli, Carlo. Loop Quantum Gravity. 2008.

Cita MLA (8a ed.)

Rovelli, Carlo. Loop Quantum Gravity. 2008.

警告：這些引文格式不一定是100％准確.