एपीए उद्धरण

Haack, W. (1972). Lectures on partial differential equations. Pergamon press.

शिकागो स्टाइल उद्धरण

Haack, Wolfgang. Lectures on Partial Differential Equations. Oxford: Pergamon press, 1972.

एमएलए उद्धरण

Haack, Wolfgang. Lectures on Partial Differential Equations. Pergamon press, 1972.