APA (7th ed.) Citation

Purnell, H. (1968). Progress in gas chromatography. Interscience Publishers.

Chicago Style (17th ed.) Citation

Purnell, Howard. Progress in Gas Chromatography. New York: Interscience Publishers, 1968.

MLA (9th ed.) Citation

Purnell, Howard. Progress in Gas Chromatography. Interscience Publishers, 1968.

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