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Nature invents, science applies
Ray Bethers
Hardcover (Hastings house, March 15, 1961)None
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Ports of adventure
Ray Bethers
Unknown Binding (Hastings house, March 15, 1963)None
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This Is Our World
Ray Bethers
Hardcover (Macmillan and Co., Limited, March 15, 1964)None
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Nature invents,science applies
Ray Bethers
Unknown Binding (Constable, March 15, 1959)None
-
Nature Invents, Science Applies
Ray Bethers
Hardcover (Hastings House, March 15, 1959)None
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Ports of Adventure
Ray Bethers
Hardcover (Constable & Co. Ltd, March 15, 1962)None
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nature invents science applies: a book for today's boys and girls
ray bethers
Hardcover (hardback with dj, March 15, 1959)None
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PORTS OF ADVENTURE
Ray Bethers
Hardcover (Hastings House, March 15, 1963)None
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Perhaps I'll be a Railroad Man
Ray Bethers
Hardcover (Aladdin Books, New York, March 15, 1951)None
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What Happens Underground?
Ray. Bethers
Hardcover (Macmillan, March 15, 1961)None
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Perhaps I'll be a railroad man
Ray Bethers
Unknown Binding (Aladdin Books, March 15, 1951)None
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What happens in the sea
Ray Bethers
Hardcover (Macmillan, March 15, 1965)None