Não informado. (1975). Agricultural Libraries Information Notes. Technical Information Systems, National Agricultural Library.
Style de citation Chicago (17e éd.)Não informado. Agricultural Libraries Information Notes. Beltsville, Md: Technical Information Systems, National Agricultural Library, 1975.
Style de citation MLA (8e éd.)Não informado. Agricultural Libraries Information Notes. Technical Information Systems, National Agricultural Library, 1975.
Attention : ces citations peuvent ne pas être correctes à 100%.