APA

Department of health National Assembly for Wales, Scottish Executive Health Department DHSS PS (Northern Ireland) & Public Health Laboratory Service Communicable Disease Surveillance Centre. (2001). Health information for overseas travel. London: The Stationery Office.

Chicago

Department of health National Assembly for Wales, Scottish Executive Health Department DHSS PS (Northern Ireland) and Public Health Laboratory Service Communicable Disease Surveillance Centre. 2001. Health information for overseas travel. London: The Stationery Office.

Harvard

Department of health National Assembly for Wales, Scottish Executive Health Department DHSS PS (Northern Ireland) and Public Health Laboratory Service Communicable Disease Surveillance Centre. (2001). Health information for overseas travel. London: The Stationery Office.

MLA

Department of health National Assembly for Wales, Scottish Executive Health Department DHSS PS (Northern Ireland) and Public Health Laboratory Service Communicable Disease Surveillance Centre. Health information for overseas travel. London: The Stationery Office. 2001.