APA

International Symposium on Differential Equations and Dynamical Systems (1965 : University of Puerto Rico), Hale J. K., LaSalle J. P. & United States. Air Force. Office of Scientific Research. (1967). Differential equations and dynamical systems. New York: Academic Press.

Chicago

International Symposium on Differential Equations and Dynamical Systems (1965 : University of Puerto Rico), Hale Jack K, LaSalle Joseph P and United States. Air Force. Office of Scientific Research. 1967. Differential equations and dynamical systems. New York: Academic Press.

Harvard

International Symposium on Differential Equations and Dynamical Systems (1965 : University of Puerto Rico), Hale J. K., LaSalle J. P. and United States. Air Force. Office of Scientific Research. (1967). Differential equations and dynamical systems. New York: Academic Press.

MLA

International Symposium on Differential Equations and Dynamical Systems (1965 : University of Puerto Rico), Hale Jack K, LaSalle Joseph P and United States. Air Force. Office of Scientific Research. Differential equations and dynamical systems. New York: Academic Press. 1967.