GUPTA.K.K & MALHOTRA, S. (2012). FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 7. FRANK BROS & CO.
Lua i Stíl Chicago (17ú heag.)GUPTA.K.K & MALHOTRA, STALIN. FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 7. FRANK BROS & CO, 2012.
Lua MLA (9ú heag.)GUPTA.K.K & MALHOTRA, STALIN. FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 7. FRANK BROS & CO, 2012.
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