Cita APA (7a ed.)

Lawn, R. E., Thompson, M., & Walker, R. F. Proficiency testing in analytical chemistry. Royal Society of Chemistry.

Cita Chicago Style (17a ed.)

Lawn, Richard E., Michael Thompson, y Ronald F. Walker. Proficiency Testing in Analytical Chemistry. Cambridge: Royal Society of Chemistry.

Cita MLA (9a ed.)

Lawn, Richard E., et al. Proficiency Testing in Analytical Chemistry. Royal Society of Chemistry.