APA (7th ed.) Citation

Hua, L., Lin, W., & Wu, C. (1985). Second-order systems of partial differential equations in the plane. Pitman.

Chicago Style (17th ed.) Citation

Hua, Luogeng, Wei Lin, and Ci-Quian Wu. Second-order Systems of Partial Differential Equations in the Plane. Boston: Pitman, 1985.

MLA (9th ed.) Citation

Hua, Luogeng, et al. Second-order Systems of Partial Differential Equations in the Plane. Pitman, 1985.