एपीए उद्धरण

H Werner, & D Waller. (2002). Pneumatics . Work book Basic Level. Germany: Festo Didactic.

शिकागो स्टाइल उद्धरण

H Werner, और D Waller. Pneumatics . Work Book Basic Level. Germany: Festo Didactic, 2002.

एमएलए उद्धरण

H Werner, और D Waller. Pneumatics . Work Book Basic Level. Germany: Festo Didactic, 2002.