GUPTA.K.K. (2013). FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL WORKBOOK CLASS-VI. FRANK BROS & CO.
Čikaški stil citiranja (17. izdanje)GUPTA.K.K. FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL WORKBOOK CLASS-VI. FRANK BROS & CO, 2013.
MLA način citiranja (9. izdanje)GUPTA.K.K. FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL WORKBOOK CLASS-VI. FRANK BROS & CO, 2013.
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