1. Doherty, R.L., et al. 1968. Trans. R. Soc. Trop. Med. Hyg. 62:430-438. 2. Doherty, R.L., et al. 1970. Trans. R. Soc. Trop. Med. Hyg. 64:748-753. 3. Carley, J.G. and Standfast, H.A. Personal communication. 1967. 4. Marshall, I.D. 1984. Unpublished data.
|