Brauer, F., & Nohel, J. A. (1969). The qualitative theory of ordinary differential equations: An introduction. W.A. Benjamin.
芝加哥风格引文Brauer, Fred, 与 John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. New York: W.A. Benjamin, 1969.
MLA引文Brauer, Fred, 与 John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. W.A. Benjamin, 1969.
警告：这些引文格式不一定是100％准确.