@inbook {b88, title = {Ecological and epidemiological considerations of Rocky Mountain spotted fever and scrub typhus, p. 33-50}, booktitle = {Biology of rickettsial diseases}, year = {1988}, publisher = {CRC Press}, organization = {CRC Press}, address = {Boca Raton, Fla}, author = {Burgdorfer, W.}, editor = {D. H. Walker} }