APA
W.H.O.T.R.S.782, . (1989). Monitoring and evaluation of oral health. W.H.O., Geneva: .
Chicago
W.H.O.T.R.S.782, . 1989. Monitoring and evaluation of oral health. W.H.O., Geneva: .
Harvard
W.H.O.T.R.S.782, . (1989). Monitoring and evaluation of oral health. W.H.O., Geneva: .
MLA
W.H.O.T.R.S.782, . Monitoring and evaluation of oral health. W.H.O., Geneva: . 1989.