APA (7th ed.) Citation

Yang, X., Yang, X., & Teo, K. L. (2003). On properties of semipreinvex functions. Cambridge University Press.

Chicago Style (17th ed.) Citation

Yang, X., X. Yang, and Kok Lay Teo. On Properties of Semipreinvex Functions. Cambridge University Press, 2003.

MLA (9th ed.) Citation

Yang, X., et al. On Properties of Semipreinvex Functions. Cambridge University Press, 2003.