APA
WHO, . (1991). Insect and rodent control through environmental management: a community action programme[ 7 programme-puzzle ]. Geneva: WHO Regional Publications.
Chicago
WHO, . 1991. Insect and rodent control through environmental management: a community action programme[ 7 programme-puzzle ]. Geneva: WHO Regional Publications.
Harvard
WHO, . (1991). Insect and rodent control through environmental management: a community action programme[ 7 programme-puzzle ]. Geneva: WHO Regional Publications.
MLA
WHO, . Insect and rodent control through environmental management: a community action programme[ 7 programme-puzzle ]. Geneva: WHO Regional Publications. 1991.