एपीए उद्धरण

(1986). Cole-parmer 1987/1988. USA: Cole-Parmer instrument company.

शिकागो स्टाइल उद्धरण

Cole-parmer 1987/1988. USA: Cole-Parmer instrument company, 1986.

एमएलए उद्धरण

Cole-parmer 1987/1988. USA: Cole-Parmer instrument company, 1986.