Sexton, D. J., & Walker, D. H. (2005). Spotted Fever Group Rickettsioses. In Tropical Infectious Diseases Principles Pathogens Practice 2 Volume Set with Cd Rom (pp. 539–547). https://doi.org/10.1016/B978-0-443-06668-9.50055-7

Sexton, D. J., and D. H. Walker. “Spotted Fever Group Rickettsioses.” In Tropical Infectious Diseases Principles Pathogens Practice 2 Volume Set with Cd Rom, 539–47, 2005. https://doi.org/10.1016/B978-0-443-06668-9.50055-7.

Sexton DJ, Walker DH. Spotted Fever Group Rickettsioses. In: Tropical Infectious Diseases Principles Pathogens Practice 2 Volume Set with Cd Rom. 2005. p. 539–47.

Sexton, D. J., and D. H. Walker. “Spotted Fever Group Rickettsioses.” Tropical Infectious Diseases Principles Pathogens Practice 2 Volume Set with Cd Rom, 2005, pp. 539–47. Scopus, doi:10.1016/B978-0-443-06668-9.50055-7.

Sexton DJ, Walker DH. Spotted Fever Group Rickettsioses. Tropical Infectious Diseases Principles Pathogens Practice 2 Volume Set with Cd Rom. 2005. p. 539–547.