Não informado. (1975). Agricultural Libraries Information Notes. Technical Information Systems, National Agricultural Library.
Citace podle Chicago (17th ed.)Não informado. Agricultural Libraries Information Notes. Beltsville, Md: Technical Information Systems, National Agricultural Library, 1975.
Citace podle MLA (8th ed.)Não informado. Agricultural Libraries Information Notes. Technical Information Systems, National Agricultural Library, 1975.
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