APA (7th ed.) Citation

Liu, X., Duan, G., & Teo, K. L. (2008). Optimal soft landing control for moon lander. Pergamon Press.

Chicago Style (17th ed.) Citation

Liu, X., G. Duan, and Kok Lay Teo. Optimal Soft Landing Control for Moon Lander. Pergamon Press, 2008.

MLA (9th ed.) Citation

Liu, X., et al. Optimal Soft Landing Control for Moon Lander. Pergamon Press, 2008.