Sexton, D. J., & Walker, D. H. (2006). Spotted Fever Group Rickettsioses, 1, 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” 1 (December 1, 2006): 539–47. https://doi.org/10.1016/B978-0-443-06668-9.50055-7.

Sexton DJ, Walker DH. Spotted Fever Group Rickettsioses. 2006 Dec 1;1:539–47.

Sexton, D. J., and D. H. Walker. Spotted Fever Group Rickettsioses. Vol. 1, Dec. 2006, pp. 539–47. Scopus, doi:10.1016/B978-0-443-06668-9.50055-7.

Sexton DJ, Walker DH. Spotted Fever Group Rickettsioses. 2006 Dec 1;1:539–547.