Hill, A. F. (1952). Economic Botany: A Textbook of Useful Plants and Plant Products (2nd ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Hill, Albert F. Economic Botany: A Textbook of Useful Plants and Plant Products. 2nd ed. New York: McGraw-Hill, 1952.
Citace podle MLA (9th ed.)Hill, Albert F. Economic Botany: A Textbook of Useful Plants and Plant Products. 2nd ed. McGraw-Hill, 1952.
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