Cite
APA Citation
Unknown (2009). CDC health information for international travel 2010 : the yellow book. Philadelphia : Elsevier. http://access.bl.uk/ark:/81055/vdc_100052581540.0x000001
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Unknown (2009). CDC health information for international travel 2010 : the yellow book. Philadelphia : Elsevier. http://access.bl.uk/ark:/81055/vdc_100052581540.0x000001