Gaya APA

Prichard, E., Barwick, V. (2007). Analytical Techniques in the Sciences : Quality Assurance in Analytical Chemistry . : John Wiley & Sons Ltd.

Gaya MLA

Prichard, Elizabeth., Barwick, Vicki. "Analytical Techniques in the Sciences : Quality Assurance in Analytical Chemistry". : John Wiley & Sons Ltd, 2007. Text.