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Lua i Stíl Chicago (17ú heag.)RICHARDSON, M L. THE DICTIONARY OF SUBSTANCES AND THEIR EFFECTS (S-Z), VOL VII. ENGLAND: ROYAL SOCIETY OF CHEMISTRY, 1994.
Lua MLA (9ú heag.)RICHARDSON, M L. THE DICTIONARY OF SUBSTANCES AND THEIR EFFECTS (S-Z), VOL VII. ROYAL SOCIETY OF CHEMISTRY, 1994.
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