Cita APA (7th ed.)
Das , B. M., & Ramana, G. (2011). Principles of soil dynamics (2nd ed.). Cengage Learning.
Cita Chicago (17th ed.)
Das , Braja M., i G.V Ramana. Principles of Soil Dynamics. 2nd ed. Delhi: Cengage Learning, 2011.
Cita MLA (9th ed.)
Das , Braja M., i G.V Ramana. Principles of Soil Dynamics. 2nd ed. Cengage Learning, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.