: - 4 , - 8 , - 4 , - 4 . :
1. 3 .
2. 2 , , , .
3. 3 .
, - . 5 , 10 . .
.
30 , 30 , 10 , 10 , 10 .
, . .
, , , , .
http://greenbootliving.com/2012/09/14/non-toxic-bug-repellent/