any Software Documentation standards?

[Narayan S. Raja]

Please excuse me if this is not the appropriate
newsgroup for the following question, emailed
by my friend in India:

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From: kscst%vigyan at shakti.ernet.in

Is there any manual or documentation regarding 
procedure to be adopted for software documentation 
(like ANSI or IBM standards) while generating or 
writing source code in various computer languages?
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Pl. reply by email either to myself
or my friend at the above address.
Thank you in advance,


Narayan Sriranga Raja.