Blake, John B. <br/><br/>
Benjamin waterhouse and the introduction of vaceination: a reappraisal  John B. Blake. 

 - Philadelphia  University of Pennsy Lvania Press  1957 
 - 95p. 21cm 
 - (Medicine monographs series no. 33). .
<br/><br/><label>Dewey Class. No.: </label>614.47  / B60B