Davis, H. T. (1960). Introduction to nonlinear differential and integral equations. U.S. Atomic Energy Commission.
芝加哥风格引文Davis, Harold T. Introduction to Nonlinear Differential and Integral Equations. [Washington]: U.S. Atomic Energy Commission, 1960.
MLA引文Davis, Harold T. Introduction to Nonlinear Differential and Integral Equations. U.S. Atomic Energy Commission, 1960.
警告：这些引文格式不一定是100％准确.