DHINGRA PUBLISHING HOUSE. (2005). THE BIG BOOK OF SCIENCE PROJECTS. DHINGRA PUBLISHING HOUSE.
Chicago-referens (17:e uppl.)DHINGRA PUBLISHING HOUSE. THE BIG BOOK OF SCIENCE PROJECTS. NEW DELHI: DHINGRA PUBLISHING HOUSE, 2005.
MLA-referens (9:e uppl.)DHINGRA PUBLISHING HOUSE. THE BIG BOOK OF SCIENCE PROJECTS. DHINGRA PUBLISHING HOUSE, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.