Mal:Lankinen 1994
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Lankinen, Kari S., Staffan Bergstrøm, P. Helena Mäkelä & Miika Peltomaa (1994). Health and disease in developing countries. London: MacMillan Education Ltd.. ISBN 0-333-58900-9.
Lankinen, Kari S., Staffan Bergstrøm, P. Helena Mäkelä & Miika Peltomaa (1994). Health and disease in developing countries. London: MacMillan Education Ltd.. ISBN 0-333-58900-9.