Bibliografía

Imagen:

https://www.google.com.co/search?q=rickettsia+spp&biw=1034&bih=651&source=lnms&tbm=isch&sa=X&ei=sWRQVI2GKMekgwT_roSoDg&ved=0CAYQ_AUoAQ#tbm=isch&q=enfermedad+transmitida+por+rickettsia+en+humanos&facrc=_&imgdii=_&imgrc=gAC1f9-T_DIX3M%253A%3BCjZ8Ef_m56lvaM%3Bhttp%253A%252F%252Felregionaldeguasave.com%252Fweb%252Ffotos%252FAGOSTO.30.2012%252Ffiebrebotonosa.rickettsiosis.gve.nota.jpg%3Bhttp%253A%252F%252Felregionaldeguasave.com%252Fweb%252FER1626.htm%3B586%3B300

Video:

http://www.youtube.com/watch?v=GMOpxEATUHc