MEHRA, P. NINE HATS GENERAL SCIENCE INTEGRATED COURSEBOOK- 5. CHETANA PUBLICATIONS.
Cita Chicago (17th ed.)MEHRA, PREETI. NINE HATS GENERAL SCIENCE INTEGRATED COURSEBOOK- 5. CHETANA PUBLICATIONS.
Cita MLA (9th ed.)MEHRA, PREETI. NINE HATS GENERAL SCIENCE INTEGRATED COURSEBOOK- 5. CHETANA PUBLICATIONS.
Atenció: Aquestes cites poden no estar 100% correctes.