Dyfyniad APA

NCERT. (2007). SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NCERT.

Dyfyniad Arddull Chicago

NCERT. SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NEW DELHI: NCERT, 2007.

Dyfyniad MLA

NCERT. SOCIAL SCIENCE OUR ENVIRONMENT TEXTBOOK IN GEOGRAPHY FOR CLASS - VII. NCERT, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.