BRAIN MAPPING ACADEMY. (2012). BMA'S TALENT & OLYMPIAD EXAMS RESOURCES BOOK CLASS- VII. BRAIN MAPPING ACADEMY.
Chicago-referens (17:e uppl.)BRAIN MAPPING ACADEMY. BMA'S TALENT & OLYMPIAD EXAMS RESOURCES BOOK CLASS- VII. BRAIN MAPPING ACADEMY, 2012.
MLA-referens (9:e uppl.)BRAIN MAPPING ACADEMY. BMA'S TALENT & OLYMPIAD EXAMS RESOURCES BOOK CLASS- VII. BRAIN MAPPING ACADEMY, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.