Cita APA (7th ed.)
Patra, N. R. (2012). Ground improvement techniques. Vikas Publishing House.
Cita Chicago (17th ed.)
Patra, Nihar Ranjan. Ground Improvement Techniques. Kolkata: Vikas Publishing House, 2012.
Cita MLA (9th ed.)
Patra, Nihar Ranjan. Ground Improvement Techniques. Vikas Publishing House, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.