Não informado. (1980). International Petrochemical Developments. Rickian.
Style de citation Chicago (17e éd.)Não informado. International Petrochemical Developments. Palm Beach, Fla: Rickian, 1980.
Style de citation MLA (8e éd.)Não informado. International Petrochemical Developments. Rickian, 1980.
Attention : ces citations peuvent ne pas être correctes à 100%.