That's a difficult question as we could get into copyright issues and morals of posting songs without the author's permission but...
As a SUGGESTION, in the thread, credit the author (including trad) and (although this doesn't happen often here), give us the source, ie. where you got it from. eg.
Widdicombe Fair (traditional)
"Tom Pearce. Tom Pearce, lend me your grey mare, All along, down along, out along lee, [..]