Ashar. (2013). A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents (1.). Springer International Publishing.
Cita Chicago (17th ed.)Ashar. A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents. 1. Springer International Publishing, 2013.
Cita MLA (8th ed.)Ashar. A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents. 1. Springer International Publishing, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.