APA
WHO TRS 510, . (1973). Statistical principles in public helth field studies. : .
Chicago
WHO TRS 510, . 1973. Statistical principles in public helth field studies. : .
Harvard
WHO TRS 510, . (1973). Statistical principles in public helth field studies. : .
MLA
WHO TRS 510, . Statistical principles in public helth field studies. : . 1973.