The Works Pertaining to Henrietta Leavitt that I Intend to Use on my Quarter 3 Astronomer Project

"A Science Odyssey: People and Discoveries: Henrietta Leavitt." PBS: Public Broadcasting Service. Web. 19 Feb. 2011. http://www.pbs.org/wgbh/aso/databank/entries/baleav.html.

Dictionary of Science Biography. C. Gillispie, editor Charles Scribner's Sons. 1981.

"Henrietta Leavitt Biography | BookRags.com." BookRags.com | Study Guides, Lesson Plans, Book Summaries and More. Web. 19 Feb. 2011. <http://www.bookrags.com/biography/henrietta-leavitt-wop/>.