Vaughan, J., & Morrow, R. (1989). Manual of epidemiology for district health management. World Health Organitation.
Chicago-čujuhus (17. p.)Vaughan, J.P, juo R.H Morrow. Manual of Epidemiology for District Health Management. World Health Organitation, 1989.
MLA-čujuhus (9. p.)Vaughan, J.P, juo R.H Morrow. Manual of Epidemiology for District Health Management. World Health Organitation, 1989.
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