Doss, Mildred A.  <br/><br/>
Index-catalogue of medical and veterinary zoology. Special publication. No 3, Ticks and tickborne diseases. I: Genera and Species of Ticks. Part 2. Genera H-N /  
Mildred A. Doss; Marion M. Farr; Katherine F. Roach; George Anastos; US Department of Agriculture. 
 - Special publication. No 3, Ticks and tickborne diseases. I: Genera and Species of Ticks. Part 2. Genera H-N 
 - Washington :   U.S. Government printing Office,   1974.