Cita APA (7th ed.)

Shellard, e. (1968). Quantitative paper and thin-layer: Chromatography. Academic Press.

Cita Chicago (17th ed.)

Shellard, e.j. Quantitative Paper and Thin-layer: Chromatography. London: Academic Press, 1968.

Cita MLA (9th ed.)

Shellard, e.j. Quantitative Paper and Thin-layer: Chromatography. Academic Press, 1968.