References Filtration1. Coccagno, Luciano, Filtration: Theoretical Considerations & Pr

References

Filtration 1. Coccagno, Luciano, Filtration: Theoretical Considerations & Practical. Results, Culligan International Company. 2. McPeak, John F. and Harold L. Aronovitch, Iron in Water and Processes for Its Removal, Hungerford and Terry Inc. , Clayton, N.J. , 1983. 3. Guidelines for Canadian Drinking Water Quality, 4th ed., Minister of National Health and Welfare, Ottawa, 1989. 4. Nalco Water Treatment Handbook, 2nd ed., edited by Frank N. Kemmer, McGraw-Hill Inc., New York, 1988.

Softening 1. Owens, Dean L. , Practical Principles of Ion Exchange Water Treatment, Tall Oaks Publishing, Inc., Voorhees NJ, 1985. 2. Sybron Chemicals Inc., A Look at the Synthesis of Ion-Exchange Resins, McGraw-Hill Publishing Co. inc., New York,1963.

High Purity 1. Meltzer, Theodore H., High Purity Water Preparation, Tall Oaks Publishing, Inc., Littleton, CO, 1993.

These references most probably appear ______.

A．below an article on water purification

B．below an article on health and medicare

C．in a do-it-yourself book

D．in an operation manual