APA (7th ed.) Citation

Martin, W. T. (1961). Elementary differential equations (2nd ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Martin, William Ted. Elementary Differential Equations. 2nd ed. Reading, Mass: Addison-Wesley, 1961.

MLA (9th ed.) Citation

Martin, William Ted. Elementary Differential Equations. 2nd ed. Addison-Wesley, 1961.