1. ACGIH (1980): “Documentation of the Threshold Limit Values,” 4th ed. Cincinnati, OH: American Conference of Governmental Industrial Hygienists, p 312.
2. ACGIH (1986): “Threshold Limit Values for 1985–1986.” Cincinnati, OH: American Conference of Governmental Industrial Hygienists.
3. AOAC (1984): Nitrogen (total) in water. In “Official Methods of Analysis”, 14th ed. Washington D.C.: Association of Official Analytical Chemists pp. 623–624.
4. Allergy to inhaled egg material