APA (7th ed.) Citation

Purnell, H. (1962). Gas chromatograhy / by H. Purnell. Wiley.

Chicago Style (17th ed.) Citation

Purnell, H. Gas Chromatograhy / by H. Purnell. Wiley, 1962.

MLA (9th ed.) Citation

Purnell, H. Gas Chromatograhy / by H. Purnell. Wiley, 1962.

Warning: These citations may not always be 100% accurate.