Steffen, Robert. <br/><br/>
Manual of travel medicine and health / 
Robert Steffen, Herbert L. DuPont, Annelies Wilder-Smith. 
 - 4th ed. 
 - Ontario :  BC Decker Inc,  c2007. 
 - xi, 594 p. :  ill. ;  18 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781550093698 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Travel--Health aspects--Handbooks, manuals, etc.<br/>Tropical medicine--Handbooks, manuals, etc.<br/>Travel.