NCERT. (2007). SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NCERT.
Lua i Stíl Chicago (17ú heag.)NCERT. SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NEW DELHI: NCERT, 2007.
Lua MLA (9ú heag.)NCERT. SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NCERT, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.