Não informado. (2020). SPE Index. Society of Petroleum Engineers.
Style de citation Chicago (17e éd.)Não informado. SPE Index. Richardson, Tex: Society of Petroleum Engineers, 2020.
Style de citation MLA (8e éd.)Não informado. SPE Index. Society of Petroleum Engineers, 2020.
Attention : ces citations peuvent ne pas être correctes à 100%.