Kohnke Helmut. (1968). Soil physics. Tata Mc Graw Hill.
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Chicago Style (17th ed.) Citation
Kohnke Helmut. Soil Physics. New Delhi: Tata Mc Graw Hill, 1968.
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MLA引文
Kohnke Helmut. Soil Physics. Tata Mc Graw Hill, 1968.
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警告：這些引文格式不一定是100％准確.