1. Stress-Corrosion Cracking of Steels In Agricultural Ammonia
2. 48 CFR, part 173 (as revised, Federal Register 40, No. 113, 11 June, 1975), US Department of Transportation, Washington, DC.
3. R. M. VANCE: in 'Proceedings of the 1st joint aerospace and marine corrosion technology seminar, 1968',34; 1969, Houston, Tex., NACE.
4. Stress Corrosion Cracking of Mild Steel in Ammonia Vapor Above Liquid Ammonia