KOHNKE, H. (1979). Soil physics. TATA McGraw-Hill Publishing.
Chicagoスタイル(17版)引用形式KOHNKE, Helmut. Soil Physics. New Delhi: TATA McGraw-Hill Publishing, 1979.
MLA(9版)引用形式KOHNKE, Helmut. Soil Physics. TATA McGraw-Hill Publishing, 1979.
警告: この引用は必ずしも正確ではありません.