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Edwin Powell Hubble
BIBLIOGRAPHY

"Exploring the History of Science." http://www.mcps.org/
bhs/classes/freeman/ep_hist. April 19, 2001.


"Hubble, Edwin Powell." http://kids.infoplease.lycos.com/
ce6/people/A0824420.html. April 1, 2001


"Hubble, Edwin Powell." http://library.thinkquest.org/
20230/people/edwinhub.htm. April 1, 2001.


"Hubble, Edwin Powell," Microsoft® Encarta® Online
Encyclopedia 2000 http://encarta.msn.com © 1997-2000
Microsoft Corporation. All rights reserved.


"Hale, Gregory Ellory." http://www.mtwilson.edu/.


"Satellite Astronomy" The World Book Encyclopedia of
Science. 1989 ed.