1. Water Purification by Ion Exchange;Arden,1968
2. Ion Exchange;Helffrich,1962
3. Handbook of Separation Techniques for Chemical Engineers,1988
4. On the absorbent power of soils;Thompson;J. R. Agric. Soc. Eng.,1850
5. On the power of soils to absorb manure;Way;J. R. Agric. Soc. Eng.,1850