Evans, W. H. (1902). Agricultural investigations in the island possessions of the United States. [s.n.].
Citace podle Chicago (17th ed.)Evans, Walter Harrison. Agricultural Investigations in the Island Possessions of the United States. Washington: [s.n.], 1902.
Citace podle MLA (9th ed.)Evans, Walter Harrison. Agricultural Investigations in the Island Possessions of the United States. [s.n.], 1902.
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