APA (7th ed.) Citation

Ashby, J. (1977). An introduction to gas chromatography. Pye Unicam.

Chicago Style (17th ed.) Citation

Ashby, J.D. An Introduction to Gas Chromatography. Cambridge: Pye Unicam, 1977.

MLA (9th ed.) Citation

Ashby, J.D. An Introduction to Gas Chromatography. Pye Unicam, 1977.

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