Alper, Allen M. text New York Academic Press 1970-71 monographic 4 v. illus. pt. 1. Magnesia, lime, and chrome refractories.--pt. 2. Oxides of rare earths, titanium, zirconium, hafnium, niobium, and tantalum.--pt. 3. Magnesia, alumina, beryllia ceramics: fabrication, characterization, and properties.--pt. 4. Refractory glasses, glass-ceramics, and ceramics. Refractory materials Oxides 666 HIG 0120533049 (v. 4)