grammar opinion request

[ajva]

Something I've been thinking about for a while: does the impersonal third person possessive require an apostrophe? It seems it is always written without. Can you give me a reference as to why this is correct? For example:

This is a guide for how to live ones life.

As opposed to

This is a guide for how to live one's life.

References welcome.

Comments

[kelemvor.livejournal.com]

I've always seen it with the apostrophe...

[thekumquat.livejournal.com]

Ditto, and I agree it should do.