1.
The Britannica Guide to Heat, Force, and Motion (Physics Explained)
by Gregersen, Erik
ISBN: 9781615303090
List Price: $64.65
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The Britannica Guide to Matter (Physics Explained)
by Gregersen, Erik
ISBN: 9781615303236
List Price: $64.65
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Britannica Guide to Statistics and Probability
by Gregersen, Erik
ISBN: 9781615302260
List Price: $90.00
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Britannica Guide to Electricity and Magnetism
by Gregersen, Erik
ISBN: 9781615304233
List Price: $129.30
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The Milky Way and Beyond: Stars, Nebulae, and Other Galaxies (An Explorer's Guide to the Uni...
by Gregersen, Erik
ISBN: 9781615300242
List Price: $40.00
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Astronomical Observations: Astronomy and the Study of Deep Space (An Explorer's Guide to the...
by Gregersen, Erik
ISBN: 9781615300259
List Price: $40.00
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The Inner Solar System: The Sun, Mercury, Venus, Earth, and Mars (An Explorer's Guide to the...
by Gregersen, Erik
ISBN: 9781615300129
List Price: $40.00
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The Outer Solar System: Jupiter, Saturn, Uranus, Neptune, and the Dwarf Planets (An Explorer...
by Gregersen, Erik
ISBN: 9781615300143
List Price: $40.00
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Manned Spaceflight (An Explorer's Guide to the Universe)
by Gregersen, Erik
ISBN: 9781615300006
List Price: $40.00
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The Britannica Guide to the Atom (Physics Explained)
by Gregersen, Erik
ISBN: 9781615303199
List Price: $64.65
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The Britannica Guide to Electricity and Magnetism (Physics Explained)
by Gregersen, Erik
ISBN: 9781615303052
List Price: $64.65
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Astronomical Observations : Astronomy and the Study of Deep Space
by Gregersen, Erik
ISBN: 9781615300778
List Price: $80.00
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Inner Solar System : The Sun, Mercury, Venus, Earth, and Mars
by Gregersen, Erik
ISBN: 9781615300839
List Price: $80.00
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Outer Solar System : Jupiter, Saturn, Uranus, Neptune, and the Dwarf Planets
by Gregersen, Erik
ISBN: 9781615300907
List Price: $80.00
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Universe : A Historical Survey of Beliefs, Theories, and Laws
by Gregersen, Erik
ISBN: 9781615300914
List Price: $80.00
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Milky Way and Beyond : Stars, Nebulae, and Other Galaxies
by Gregersen, Erik
ISBN: 9781615300945
List Price: $80.00