एपीए उद्धरण

(2003). Cole-parmer 2003/04. USA: Cole-Parmer instrument company.

शिकागो स्टाइल उद्धरण

Cole-parmer 2003/04. USA: Cole-Parmer instrument company, 2003.

एमएलए उद्धरण

Cole-parmer 2003/04. USA: Cole-Parmer instrument company, 2003.