standards: Reading other Manuals

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1 6.10 Reading other Manuals
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1 There may be non-free books or documentation files that describe the
1 program you are documenting.
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1    It is ok to use these documents for reference, just as the author of
1 a new algebra textbook can read other books on algebra.  A large portion
1 of any non-fiction book consists of facts, in this case facts about how
1 a certain program works, and these facts are necessarily the same for
1 everyone who writes about the subject.  But be careful not to copy your
1 outline structure, wording, tables or examples from preexisting non-free
1 documentation.  Copying from free documentation may be ok; please check
1 with the FSF about the individual case.
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