(1948). Diagnostic techniques for soils and crops: Their value and use in estimating the fertility status of soils and nutritional requirements of crops. American Potash Inst.
Chicago-Zitierstil (17. Ausg.)Diagnostic Techniques for Soils and Crops: Their Value and Use in Estimating the Fertility Status of Soils and Nutritional Requirements of Crops. Washington, Wash: American Potash Inst, 1948.
MLA-Zitierstil (9. Ausg.)Diagnostic Techniques for Soils and Crops: Their Value and Use in Estimating the Fertility Status of Soils and Nutritional Requirements of Crops. American Potash Inst, 1948.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.