李连捷。美国伊利诺州印第安人墓地黄土母质土壤发育的速度。伊利诺大学农学系论文，1943 . Li Lianjie。
Rate of Soil Development of Indian Moundon Peorian Loessin Northern Illinois State. Printed in 1943, by Agronomy Department of Illinois University.
李连捷。美国伊利诺州印第安人墓地黄土母质土壤发育的速度。伊利诺大学农学系论文，1943 . Li Lianjie。
Rate of Soil Development of Indian Moundon Peorian Loessin Northern Illinois State. Printed in 1943, by Agronomy Department of Illinois University.
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