Hi,
I have read this in a magazine'who n who of the city were invited there in the party',and what is meant by 'who n who'and'who'swho',and what is the difference between these two?
The "who's who" of the city were invited to the party. This means the most important and well-known people in the city were invited.
"Who 'n' who" is just an error.
Best wishes, Clive