Citation in a protocol? - (Nov/12/2008 )

I'm taking a portion of a protocol from an unpublished draft of a paper from a collaborator, and adding on several parts afterwards. How do I cite it? Should I put "author and others, year, unpublished" at the beginning and end of the portions I took>

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Being that it's unpublished and that its only a protocol (not data), I probably wouldn't bother to cite the paper. I would write out the entire protocol and leave it at that. The exception to this might be if its a very new technique that your collaborator would want credit for. You might want to ask them first.

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but if it is a collaborator then make them an author and the protocol will then be published (with their name).

or

you can acknowledge them for the protocol.

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Or, you can cite that portion of the protocol as a personal communication from the person who provided you with it.

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