Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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