Não informado. (1981). Systems and control letters. Elsevier Science Publishers.
Style de citation Chicago (17e éd.)Não informado. Systems and Control Letters. Amsterdam: Elsevier Science Publishers, 1981.
Style de citation MLA (8e éd.)Não informado. Systems and Control Letters. Elsevier Science Publishers, 1981.
Attention : ces citations peuvent ne pas être correctes à 100%.