The Church of Nigeria (Anglican Communion) has published a document with this title. It is described thus:
Archbishop Peter Akinola writes to Nigerian Synods on the Journey towards Lambeth 2008
You can read the original copy here.
There were a number of formatting problems with that copy and so I have made another copy here. This copy now includes the paragraphs that were previously omitted by mistake from the original. For convenience of those who read the earlier version, I have placed the additions in italics.