Page, M., & Williams, A. (1997). Organic and bio-organic mechanisms. Addison Wesley Longman.
Lua i Stíl Chicago (17ú heag.)Page, Michael, agus Andrew Williams. Organic and Bio-organic Mechanisms. Essex, England: Addison Wesley Longman, 1997.
Lua MLA (9ú heag.)Page, Michael, agus Andrew Williams. Organic and Bio-organic Mechanisms. Addison Wesley Longman, 1997.
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