एपीए उद्धरण

(1980). Betz Handbook of Industrial Water Conditioning (8th.). Betz.

शिकागो स्टाइल उद्धरण

Betz Handbook of Industrial Water Conditioning. 8th. Pennysylvania: Betz, 1980.

एमएलए उद्धरण

Betz Handbook of Industrial Water Conditioning. 8th. Betz, 1980.