एपीए उद्धरण

(1992). Cole - Parmer 1991/1992 Instrument Company. USA: North Oak Park Avenue, Chicago, Illinois.

शिकागो स्टाइल उद्धरण

Cole - Parmer 1991/1992 Instrument Company. USA: North Oak Park Avenue, Chicago, Illinois, 1992.

एमएलए उद्धरण

Cole - Parmer 1991/1992 Instrument Company. USA: North Oak Park Avenue, Chicago, Illinois, 1992.