Cita APA (7th ed.)

Hopf, L. (1948). Introduction to the differential equations of physics. Dover.

Cita Chicago (17th ed.)

Hopf, L. Introduction to the Differential Equations of Physics. Nueva York: Dover, 1948.

Cita MLA (9th ed.)

Hopf, L. Introduction to the Differential Equations of Physics. Dover, 1948.