|
Cashman,
Katherine. (1999). Volcano. World Book Encyclopedia. (Vol.20, p.438).
Chicago: World Book. | |
|
McNally,
Karen. (1999). Earthquakes. World Book Encyclopedia. (Vol.06, p.033).
Chicago: World Book. | |
|
McPherson,
H.J. (1999). Avalanche. World Book Encyclopedia. (Vol.01, p.982).
Chicago: World Book. | |
|
Quintiere,
James. (1999). Fire. World Book Encyclopedia. (Vol.07, p.120).
Chicago: World Book. | |
|
Rango,
Albert. (1999). Floods. World Book Encyclopedia. (Vol.07, p.236).
Chicago: World Book. | |
|
Wendland,
Wayne M. (1995). Hurricane. World Book Encyclopedia. (Vol.9, p.452).
Chicago: World Book. | |
|
Bluestein,
Howard. (1998). Tornado. World Book Encyclopedia. (Vol.19, p.333).
Chicago: World Book. | |
|
Wendland,
Wayne M. (1999). Storms. World Book Encyclopedia. (Vol.18,
p.912). Chicago: World
Book. | |
|
Nuefeld,
Victoria. (1988). Webster’s New World Di | |
|
Bramwell,
Martyn. (1986). Volcanoes and Earthquakes.
New York: Franklin Watts. | |
|
Gilfond, Henry. (1981). Disastrous Earthquakes. New York: Franklin Watts. | |
|
LeMone, Margaret A. (1999). Blizzard. World Book Encyclopedia. (Vol. 02, p.404). Chicago: World Book. | |
|
Harrington, John A., Jr. (1995). Drought. World Book Encyclopedia. (Vol. 05, p.349). Chicago: World Book. | |
Uman, Martin A. (1999). Lightning. World Book Encyclopedia. (Vol.12, p.299). Chicago: World Book. |