APA (7th ed.) Citation

Willett, J. (1987). Gas chromatography: Analytical chemistry by open learning. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Willett, John. Gas Chromatography: Analytical Chemistry by Open Learning. Chichester: John Wiley & Sons, 1987.

MLA (8th ed.) Citation

Willett, John. Gas Chromatography: Analytical Chemistry by Open Learning. John Wiley & Sons, 1987.

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