Não informado. (1905). Circular. Illinois Engineering Experiment Station.
Style de citation Chicago (17e éd.)Não informado. Circular. Urbana, Ill: Illinois Engineering Experiment Station, 1905.
Style de citation MLA (8e éd.)Não informado. Circular. Illinois Engineering Experiment Station, 1905.
Attention : ces citations peuvent ne pas être correctes à 100%.