1. Abstract of Letters Received by the Royal African Company. April 24, 1793 to March 8, 1804. folio 62. 62. T70/28: 62. Held in Public Record Office, Kew Gardens.
2. Adams, J., and R. H. Ward. Admixture studies and the detection of selection. Science
180: 1137 - 1143, 1973.
3. Adolph, E. F., et al. Physiology of Man in the Desert. Interscience Publishers, New York, 1947, p. 42.
4. Alagoa, E. J. Long-distance trade and states in the Niger-delta. J. Afr. Hist.
11: 319 - 329, 1970.
5. Anderson, R. J., and S. L. Linas Sodium depletion states. In: Sodium and Water Homeostasis, edited by B. M. Brenner and J. H. Stein. Churchill Livingstone, New York, 1978, pp. 154 - 177.