1.
Contemporary Activities in Astronomy
by Linda J. Kelsey, Darrel B. ...
ISBN: 9780787219499
List Price: $39.95
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Recent Revolutions in Astronomy
by Kelsey, Larry, Hoff, Darrel B.
ISBN: 9780531103401
List Price: $12.90
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Astronomy: Activities and Experiments
by Kelsey, Linda J., Hoff, Dar...
ISBN: 9780840329585
List Price: $24.95
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Picture Me This! : Children's Journal
by Jones, Renee Miche'al, Hoff...
ISBN: 9781735476919
List Price: $9.99
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