Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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