एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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