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Growing pelargoniums and geraniums
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Beryl Stockton,Geoff Stockton,John Mason - undifferentiated |
Colourful and comprehensive guide to these versatile plants with descriptions, cultivation and landscaping notes, hints on propogation, pests, diseases, and pruning. |
OL27735205W |
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Spacecraft technology
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John Mason - undifferentiated |
An introduction to space technology, discussing the principles of rockets, various types of satellites, travel in the solar system, and space stations. |
OL2849319W |
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Summer weather
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John Mason - undifferentiated |
Explains the causes for the climatic changes of summer in different parts of the world, discusses global warming, and describes how to make a cloud diary. |
OL2849327W |