Cita APA (7a ed.)

Purnell, H. (1962). Gas chromatography. John Wiley.

Cita Chicago Style (17a ed.)

Purnell, Howard. Gas Chromatography. New York: John Wiley, 1962.

Cita MLA (8a ed.)

Purnell, Howard. Gas Chromatography. John Wiley, 1962.