Cita APA

National Council of Educational Research and Training. (2017). NCERT SCIENCE: TEXT BOOK for Class IX.

Chicago Edition Citation

National Council of Educational Research and Training. NCERT SCIENCE: TEXT BOOK for Class IX. 2017.

Cita MLA

National Council of Educational Research and Training. NCERT SCIENCE: TEXT BOOK for Class IX. 2017.

Atenció: Aquestes cites poden no estar 100% correctes.