Dear Rett,

> A very concise and clear source is the section on composition in Jan
> Gonda's _A Concise Elementary Grammar of the Sanskrit Language_'.

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Gonda's book might not be easily available for many people. Another
excellent and detailed explanation of compounds can be found in Coulson's
Teach Yourself Sanskrit (Hodder Headline), which is very reasonably priced.

Best wishes,
Stephen Hodge