Walker,David H. <br/><br/>Biology of rikettsial diseases David H. Walker  - Florida:  CRC Press;  [1988]  - 146 pages:  with Illustration;  25 cm. <br/><br/>Include Index <br/><br/><label>ISBN: </label>0849343828 <br/><br/><label>LC Class. No.: </label>RC 114.7  / .W1772 1988