A.H. Beckett, J. S. Practical pharmaceutical chemistry. The Athlone Press.
Lua i Stíl Chicago (17ú heag.)A.H. Beckett, J.B. Stenlake. Practical Pharmaceutical Chemistry. The Athlone Press.
Lua MLA (8ú heag.)A.H. Beckett, J.B. Stenlake. Practical Pharmaceutical Chemistry. The Athlone Press.
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