Joshi, P. (1981). Science- scientific method tech. & development. S. Chand.
Cita Chicago (17th ed.)Joshi, P. Science- Scientific Method Tech. & Development. New Delhi: S. Chand, 1981.
Cita MLA (9th ed.)Joshi, P. Science- Scientific Method Tech. & Development. S. Chand, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.