MLA

Ashar, Navin G, Ashar, and Kiran R Golwalkar. A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents. Springer International Publishing, 2013.

APA

Ashar, N. G, Ashar, A., & Golwalkar, K. R. (2013). A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents. Springer International Publishing.

Chicago

Ashar, Navin G., Ashar, and Kiran R Golwalkar. A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents. : Springer International Publishing, 2013.