APA
Knapman C. E. H., Maggs R. J., . (1972). Gas and Liquid Chromatography Abstracts 1971. Barking: Applied Science Publishers.
Chicago
Knapman Charles Edward Hart, Maggs R J, . 1972. Gas and Liquid Chromatography Abstracts 1971. Barking: Applied Science Publishers.
Harvard
Knapman C. E. H., Maggs R. J., . (1972). Gas and Liquid Chromatography Abstracts 1971. Barking: Applied Science Publishers.
MLA
Knapman Charles Edward Hart, Maggs R J, . Gas and Liquid Chromatography Abstracts 1971. Barking: Applied Science Publishers. 1972.