Cita APA (7a ed.)

Shellard, E. (1968). Quantitative paper and thin-layer cromatography. Academic Press.

Cita Chicago Style (17a ed.)

Shellard, E. Quantitative Paper and Thin-layer Cromatography. London: Academic Press, 1968.

Cita MLA (8a ed.)

Shellard, E. Quantitative Paper and Thin-layer Cromatography. Academic Press, 1968.