SHAKUNTALA DEVI. (1991). BOOK OF NUMBERS. ORIENT PAPER BOOKS.
Cita Chicago (17th ed.)SHAKUNTALA DEVI. BOOK OF NUMBERS. ORIENT PAPER BOOKS, 1991.
Cita MLA (9th ed.)SHAKUNTALA DEVI. BOOK OF NUMBERS. ORIENT PAPER BOOKS, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.