MEHRA R K. (2021). TEXTBOOK OF SOIL SCIENCE. ICAR, NEW DELHI.
Cita Chicago (17th ed.)MEHRA R K. TEXTBOOK OF SOIL SCIENCE. ICAR, NEW DELHI, 2021.
Cita MLA (9th ed.)MEHRA R K. TEXTBOOK OF SOIL SCIENCE. ICAR, NEW DELHI, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.