Which was the last team to win the English League with an all English team?

Someone once told me that it was man city team that won in 1967-68, but could not provide any stats to back it up.

There may be some degree of doubt as MCFC do not cry it from the rooftops that they have that distinction

Mike

Last record of this was in 1967/68 when Manchester City won the League and 10 of them were from Manchester.