GUPTA.K.K. (2013). FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL CLASS- VI. FRANK BROS & CO.
Chicago-čujuhus (17. p.)GUPTA.K.K. FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL CLASS- VI. FRANK BROS & CO, 2013.
MLA-čujuhus (9. p.)GUPTA.K.K. FRANK MODERN CERTIFICATE CHEMISTRY FOR MIDDLE SCHOOL CLASS- VI. FRANK BROS & CO, 2013.
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