Whitney, M. (1909). A study of crop yields and soil composition in relation to soil productivity. [publisher not identified].
Chicago Style (17th ed.) CitationWhitney, Milton. A Study of Crop Yields and Soil Composition in Relation to Soil Productivity. [Place of publication not identified]: [publisher not identified], 1909.
MLA (9th ed.) CitationWhitney, Milton. A Study of Crop Yields and Soil Composition in Relation to Soil Productivity. [publisher not identified], 1909.
Warning: These citations may not always be 100% accurate.