APA (7th ed.) Citation

Liu, X. (1996). Electromagnetic wave propagation in tunnels.

Chicago Style (17th ed.) Citation

Liu, Xiaoguo. Electromagnetic Wave Propagation in Tunnels. 1996.

MLA (8th ed.) Citation

Liu, Xiaoguo. Electromagnetic Wave Propagation in Tunnels. 1996.

Warning: These citations may not always be 100% accurate.