SARKAR DIPAK , H. A. (2016). PHYSICAL AND CHEMICAL METHOD IN SOIL ANALYSIS (2ND.). NEW AGE INTERNATIONAL.
Chicago-viite (17. p.)SARKAR DIPAK , HALDAR ABHIJIT. PHYSICAL AND CHEMICAL METHOD IN SOIL ANALYSIS. 2ND. NEW AGE INTERNATIONAL, 2016.
MLA-viite (9. p.)SARKAR DIPAK , HALDAR ABHIJIT. PHYSICAL AND CHEMICAL METHOD IN SOIL ANALYSIS. 2ND. NEW AGE INTERNATIONAL, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.