Gilbert, R. P., & Buchanan, J. L. (1983). First order elliptic systems: A function theoretic approach. Academic Press.
芝加哥风格引文Gilbert, Robert P., 与 James L. Buchanan. First Order Elliptic Systems: A Function Theoretic Approach. New York: Academic Press, 1983.
MLA引文Gilbert, Robert P., 与 James L. Buchanan. First Order Elliptic Systems: A Function Theoretic Approach. Academic Press, 1983.
警告：这些引文格式不一定是100％准确.