Taras, Michael J. and Karl A. Blum. "Determination of Emulsifying Oil in Industrial Wastewater." Journal of the Water Pollution Control Federation 40/11, part II (November 1968): R404-R411.

Taras, Michael J. and Karl A. Blum. "Determination of Emulsifying Oil in Industrial Wastewater." Journal of the Water Pollution Control Federation 40/11, part II (November 1968): R404-R411.