1. Dow M. L., Brower J. F., Flinn P. E. Laboratory Information Bulletin No. 1965, FDA-DHHS, Rockville, MD Aug. 10th, 1976; 1–7, 20857
2. Gunderson E. L., Roberts L. A., Smith D. J. Laboratory Information Bulletin No. 549, FDA-DHHS, Rockville, MD June 27th, 1967; 1–3, 20857
3. Farrell T. J. Laboratory Information Bulletin No. 530, FDA-DHHS, Rockville, MD May 24th, 1967; 1–3, 20857
4. Douglas C. C. Laboratory Information Bulletin No. 535, FDA-DHHS, Rockville, MD June 13th, 1967; 1, 20857
5. Goldwitz B. A., Finkelson M. J. Laboratory Information Bulletin No. 2061, FDA-DHHS, Rockville, MD April 29th, 1977; 1–5, 20857