Dyfyniad APA

Betz, H. (1964). Differential equations with applications (2nd ed.). Harper & Row.

Dyfyniad Arddull Chicago

Betz, Herman. Differential Equations with Applications. 2nd ed. Harper & Row, 1964.

Dyfyniad MLA

Betz, Herman. Differential Equations with Applications. 2nd ed. Harper & Row, 1964.

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