Analysis of information sources in references of the Wikipedia article "Wings for My Flight" in English language version.
... DDT, a widely used pesticide that was banned in 1972 after studies linked it to reproductive difficulties in birds ...
The Oregon Book Awards are presented annually for the finest accomplishments by Oregon writers of poetry, fiction, nonfiction, drama and young readers literature.[dead link]
... DDT, a widely used pesticide that was banned in 1972 after studies linked it to reproductive difficulties in birds ...