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- Connal, A., and Connal, S. L. M. (1922). The development of Loa loa (Guyot) in Chrysops silacea (Austen) and in Chrysops dimidiata (van der Wulp). Trans. R. Soc. trop. Med. Hyg., 16, 64.
- Crewe, W., and Williams, P. (1964). Studies on the control of the vectors of loiasis in West Africa. VII: The effect of low concentrations of dieldrin in the mud of natural tabanid breeding-sites in the rain-forest of the Cameroons. Ann. trop. Med. Parasit., 58, 343.
- Kershaw, W. E., Plackett, R. L., Moore, P. J., and Williams, P. (1957). Studies on the intake of microfilariae by their insect vectors, their survival, and their effect on the survival of their vectors. IX: The pattern of the frequency of the blood-meals taken in by Chrysops silacea and of the survival of the fly in natural conditions in the rain-forest of the British Cameroons and on a rubber estate in the Niger delta. Ibid., 51, 26.
- Williams, C. B. (1937). The use of logarithms in the interpretation of certain entomological problems. Ann. appl. Biol., 24, 404.
- Williams, P. (1962a). The bionomics of the tabanid fauna of streams in the rain-forest of the Southern Cameroons. III: The distribution of immature tabanids at Kumba. Ann. trop. Med. Parasit., 56, 149
- Williams, P. (1962b). The bionomics of the tabanid fauna of streams in the rain-forest of the Southern Cameroons. IV: Seasonal fluctuations in the numbers of immature tabanids at Kumba. Ibid., 56, 274.
- Williams, P. (1962c). Studies on the control of the vectors of loiasis in West Africa. I: Introduction. Ibid., 56, 284.
- Williams, P. (1963a). Studies on the control of the vectors of loiasis in West Africa. III: Comparison of the toxicities of DDT, dieldrin, aldrin and gamma-BHC to late-instar tabanid larvae. Ibid., 57, 182.
- Williams, P. (1963b). Studies on the control of the vectors of loiasis in West Africa. VI: The effects of water emulsions of dieldrin on late-instar Chrysops larvae in the laboratory. Ibid., 57, 430.
- Williams, P. and Crewe, W. (1963). Studies on the control of the vectors of loiasis in West Africa. V: The effects of DDT, dieldrin, aldrin and gamma-BHC in the mud of natural tabanid breeding-sites in the rain-forest of the Cameroons. Ibid., 57, 300.
- Williams, P. and Crewe, W. Vickars, M. A., Park, P. O., Crewe, W., and Mesmer, E. T. (1963). Studies on the control of the vectors of loiasis in West Africa. IV: The persistence of DDT, dieldrin, aldrin and gamma-BHC in the mud of natural tabanid breeding-sites in the rain-forest of the Cameroons. Ibid., 57, 283.