Sandhu, G. (1990). Research techniques in biological sciences. Anmol.
Cita Chicago (17th ed.)Sandhu, G.S. Research Techniques in Biological Sciences. New Delhi: Anmol, 1990.
Cita MLA (9th ed.)Sandhu, G.S. Research Techniques in Biological Sciences. Anmol, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.