Cita APA (7th ed.)

Littlewood, A. (1970). Gas chromatography: Principles. Academic Press.

Cita Chicago (17th ed.)

Littlewood, A.B. Gas Chromatography: Principles. New York: Academic Press, 1970.

Cita MLA (9th ed.)

Littlewood, A.B. Gas Chromatography: Principles. Academic Press, 1970.