Johnson, A. P., Abeck, D., Wall, R. A., Mabey, D. C., & Taylor-Robinson, D. (1987). Plasmid content, auxotype and protein-I serovar of gonococci isolated in the Gambia. Cambridge University Press.

Johnson, A. P., D. Abeck, R. A. Wall, D. C. Mabey, und D. Taylor-Robinson. Plasmid Content, Auxotype and Protein-I Serovar of Gonococci Isolated in the Gambia. Cambridge University Press, 1987.

Johnson, A. P., et al. Plasmid Content, Auxotype and Protein-I Serovar of Gonococci Isolated in the Gambia. Cambridge University Press, 1987.