Não informado. (2021). Cooperative Resources Report. State Geological Survey.
Style de citation Chicago (17e éd.)Não informado. Cooperative Resources Report. Urbana, Ill: State Geological Survey, 2021.
Style de citation MLA (8e éd.)Não informado. Cooperative Resources Report. State Geological Survey, 2021.
Attention : ces citations peuvent ne pas être correctes à 100%.