Não informado. (1998). Process Engineering Suppliers Guide. Technical Indexes.
Style de citation Chicago (17e éd.)Não informado. Process Engineering Suppliers Guide. Berkshire, Inglaterra: Technical Indexes, 1998.
Style de citation MLA (8e éd.)Não informado. Process Engineering Suppliers Guide. Technical Indexes, 1998.
Attention : ces citations peuvent ne pas être correctes à 100%.