APA引文

Liebertein, H. M. (1972). Theory of partial differential equations. Academic Press.

Chicago Edition Citation

Liebertein, H. Melvin. Theory of Partial Differential Equations. New York: Academic Press, 1972.

MLA引文

Liebertein, H. Melvin. Theory of Partial Differential Equations. Academic Press, 1972.

警告：这些引文格式不一定是100％准确.