Echoes /
Describes the basic characteristics of echoes and how, by studying them, man has gained valuable information about the nature of sonar exploration and navigation.
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| Format: | Book |
| Language: | English |
| Published: |
New York :
Dandelion Press,
1979.
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| Series: | Dandelion books.
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| Summary: | Describes the basic characteristics of echoes and how, by studying them, man has gained valuable information about the nature of sonar exploration and navigation. |
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| Item Description: | "The text of this book was first published, in somewhat different form, in 1965." |
| Physical Description: | 32 unnumbered pages : color illustrations ; 18 x 23 cm. |
| ISBN: | 0897991028 0897990374 (pbk.) : |