1. Modern Methods of Core Making;Angelov,1975
2. Foundry Technology;Beeley,1972
3. Steel Foundry Practice;Bidulya,1968
4. Clay Mineralogy;Grim,1968
5. The bonding action of clays, II, Clay in dry moulding sands;Grim;Illinois State Geol. Surv. Rept. Invest.,1946