Horizon Information Portal

	Series	Count
1.	Extreme environmental threats	3
2.	Extreme explorations (Series)	0
3.	See Fact finders. Extreme explorations!	2
4.	Extreme fish	0
5.	See Hamilton, Sue L., 1959- Xtreme fish	6
6.	Extreme fishing	0
7.	See Hamilton, Sue L., 1959- Xtreme fishing	3
8.	Extreme habitats	1
9.	Extreme insects	0
10.	See Hamilton, Sue L., 1959- Xtreme insects	3
11.	Extreme jobs	0
12.	See Hyland, Tony. Extreme jobs	1
13.	See Tieck, Sarah, 1976- Big buddy books. Extreme jobs	3
14.	See Xtreme jobs	3
15.	Extreme life	0
16.	See Fact finders. Extreme life	2
17.	Extreme machines	0
18.	See Armentrout, Patricia, 1960- Extreme machines	1
19.	Extreme machines (New York, N.Y.)	0
20.	See Werther, Scott P. Extreme machines	1