Não informado. (1950). Agricultural and horticultural Engineering abstracts. National Institute of Agricultural Engineering.
Citace podle Chicago (17th ed.)Não informado. Agricultural and Horticultural Engineering Abstracts. Silsoe, Inglaterra: National Institute of Agricultural Engineering, 1950.
Citace podle MLA (8th ed.)Não informado. Agricultural and Horticultural Engineering Abstracts. National Institute of Agricultural Engineering, 1950.
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