American Chemical Society. Division of the History of Chemistry & Patterson, G. D. (2018). Preceptors in chemistry. American Chemical Society.
Lua i Stíl Chicago (17ú heag.)American Chemical Society. Division of the History of Chemistry agus Gary D. Patterson. Preceptors in Chemistry. Washington, DC: American Chemical Society, 2018.
Lua MLA (9ú heag.)American Chemical Society. Division of the History of Chemistry agus Gary D. Patterson. Preceptors in Chemistry. American Chemical Society, 2018.
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