REFERENCES
- G. Bocksteigel, Powder Met., 1962, (10), 171.
- “Powder Metallurgy Equipment Association: Powder Metallurgy Equipment Manual” Part 1. 1963: New York (Metal Powder Industries Federation).
- E. Mitchell and C. Dawes, Metal Treatment 1964,31, 418
- “Sherardizing ” (Zinc Alloy Rust-Proofing Co., Ltd., Wolverhampton).