Henry Gilfond

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1) Genealogy: how to find your roots

Author

Series

Pub. Date

1978

Description

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Presents step-by-step directions for tracing lineage including routines for research and sources of information.

2) Disastrous earthquakes

Author

Series

Pub. Date

1981

Description

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Explains what causes earthquakes, how to predict and measure them, and ways to prevent damage. Also describes great quakes throughout history.