Gravity Is a Mystery

Penulis
Branley, Franklyn Mansfield/ Miller, Edward (ILT)
Penerbit
HarperCollins
Diterbitkan
20070601
ISBN
9780064452014
Kawasan pendaftaran ISBN
Kawasan berbahasa Inggeris (ISBN 978-0)
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Huraian

Colorful illustrations and text introduce the properties and principles of gravity.