International travel and health - WHO Library Cataloguing in Publication Data (Geneva, Switzerland : World Health Organization, 1990)
La Biblioteca contiene: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2002, 2005, 2007, 2008--De 1990 a 1998 con el subtítulo: Vaccination requirements and health advice : situation as on 1 january (con los respectivos años) y a partir del 2002: Situation as on 1 january 2002, 2003, 2005, 2009, 2010
Keywords: VACUNACION; ENFERMEDADES INFECCIOSAS; CONTROL; FACTORES DE RIESGO; VIAJES